lived in Zambia. o This book was

famous once, but nobody reads it today.

0t, \®WfTi$fx:\\v\Wo 3 used in negative sentences and questions, and after if to mean ‘ever’ or ‘at all’ ( ft] if /5 )         Heneveronce

offered to help, fi& M. A ± 55 $1 fcb ft IS 'ft. 0 If she once decides to do something, you won’t change her mind, jtffe -0<*;eAAA, MlMEA7M65±j£o EEJ.allat 'once 1 suddenly M-M: All at once she

lost her temper.   2 all together; at the

same time —M> IWJflf cm simultaneously- I can’t do everything all at onceyou’ll have to be patient. A 0 #W)\1IAf#o at ‘once 1 immediately; without delay tL BP; S, ±: Come here at once! S, fij ft M !          2 at the same time |s] frf HT71 simultan­

eously: Don’t all speak at once! AlCAH 1^1 N't#! 0 I can’t do two things at once.    (just)

for ‘once | just this ‘once (informal) on this occasion (which is in contrast to what happens usually) IXlfcfc—IX ( ) : Just for once he arrived on

time. R Aft — IX ik $£ Hi PJ 7 0 o Can’t you be nice to each other just this once? 31 ffc/D tfc A ib ®P '16 * IX ? going once, going twice, sold (especially NAmE) = GOING, GOING, gone at gone once a gain | once ‘more one more time; another time #—■#:; # IX: Once again the train was late. AAX—#CB&,&7o 0 Let me hear it just once more, it 3% # BJt — lit o once a , always a ... used to say that sb cannot change (          7AAf&PA$ ) —Once an

actor, always an actor. —AA ztAo once and for ‘all now and for the last time; finally or completely ft/ffffe; $1 Ji£ Jfe; — & 7 j&: We need to settle this once and for all. ISCIfrlcfEft^ — /AHiAo ,once ’bitten, .twice ‘shy (saying) after an unpleasant experience you are careful to avoid sth similar —

4£f!$e, 77il5#£i once in a blue 'moon (informal) very rarely M A          ®          (every) .once in a

'while occasionally fUAli; |h]^c .once or 'twice a few times — M&; fUX: I don’t know her well, I’ve only met her once or twice.      -ftRMftM—

.once too 'often used to say that sb has done sth wrong or stupid again, and this time they will suffer because of it    You’ve tried that trick once too

often.          It jfi, ^ft#:#j§AIft7o .once upon a

'time used, especially at the beginning of stories, to mean ‘a long time in the past’ ( 'Jf 7          ^ fill ft A ) )X

fj,      Once upon a time there was a beautiful

princess. ffM,

* conj. as soon as; when — ■■■Wti — EL; ^ • • • if #: We didn’t know how we would cope once the money had

gone.-smtitj, mmT'tamm&'AfrTo orhe

water is fine once you’re in! Ifo— EL A 77jc, M^Hsfc4§7fc a^iSo

once-over noun ffSTOl give sb/sth a/the 'once-over

(informal) 1 to look at sb/sth quickly to see what they or it are like   f Iit ;         M W —* BI 2 to clean sth

quickly      She gave the room a quick once-over

before the guests arrived. jt£gAi£$ft3fE,

£I7-To

on col ogy /nq'kDlad3i; NAmE an'kail-/ noun [U] the scientific study of and treatment of tumours in the body      on colo gist /mo'kDl0d3ist; NAmE a:n‘ka:l-/

noun

on-com-ing/'DnkAmiq; NAmE 'a:n-; 'a:n-/ adj. [only before noun] coming towards you IffilSW; BP # 5|t l[& 65 H7TI approaching : Always walk facing the oncoming traffic.

One 0-w /wAn/ number, det., pron.

m number, det. 1 the number 1 —: Do you want one or two? ifc K — 7 i£ Jit W 7 ? 0 There’s only room for one person. R A—7 A65$|h1o 0 One more, please!

—71 o a one-bedroomed apartment — |bJ{ShlH657rA)% 0 I’ll see you at one (= one o’clock), lie —     # J2. o

2 used in formal language or for emphasis before hundred, thousand, etc., or before a unit of measure­ment (  hundred, thousand

)tR*: It cost one hundred and fifty pounds, m A mfe r-IItlfc O He lost by less than one second, m IU A M - # # 6U H m 7 tfc £ „ 3 used for

emphasis to mean ‘a single’ or ‘just one’ ( ^ 3. iJ§ ) #• -A,       There’s only one thing we can do.

is ffl 61) R    # ♦ o 4 a person or thing, especially

when they are part of a group ( Ala — W ) —-7 A, —*#♦$?): One of my friends lives in Brighton.

O One place I’d really like to visit is Bali.      5 used for

emphasis to mean ‘the only one’ or ‘the most important one’ (,^3SlSl ) "i-'W — 'N He’s the

one person I can trust. jffeJillcPi          Ac o Her

one concern was for the health of her baby. M Pf£ — ^ 7' 6lJ Sfe H & 7 6lJ It M c o It’s the one thing I can’t stand about him.       6 used when

you are talking about a time in the past or the future, without actually saying which one (

Wl'al ) : I saw her one afternoon last week.     61) —7T AJEPJ TMo o One day (= at

some time in the future) you’ll understand. &         A#/

63 61] o 7 the same (fj—■7: They all went off in one direction. 111     13 M —7 A ft 7. 8 (informal, espe­

cially NAmE) used for emphasis instead of a or an ( ft# a an,  ) : That was one hell of a game! gfl-r-

      0 She’s one snappy dresser. jt&65

9 used with a person’s name to show that the speaker does not know the person ( -^A^3£^, AAiAiR65A )      7 BOH a certain: He

worked as an assistant to one Mr Ming. f& fp — fv Bf] % ■     ^ fit) 7 o iraBI as 'one (formal) in agreement; all

together—1^; — ff: We spoke as one on this matter. ZE & AI h] M ± It jll P   S(C o (be) at 'one (with sb/sth)

(formal) to feel that you completely agree with sb/sth, or that you are part of sth  a

place where you can feel at one with nature — fij-fe? A SA—for 'one used to emphasize that a particular person does sth and that you believe other people do too

in ^ ) : I, for one, would prefer to postpone the meeting. i^fliS^Sl65, — to get sth in 'one to

understand or guess sth immediately az; BP          M ft

f!] ) get one 'over (on) sb/sth (informal) to get an advantage over sb/sth £ AM.; j&M; I’m not

going to let them get one over on me! fic, A it IMl M ! go one 'better (than sb/sth) to do sth better than sb else or than you have done before J&A-'H; ( tb i BilA )      POT1 OUTDO: She did well this year

and next year she hopes to go one better,         Af# A

in'one used to say that sb/sth has different roles, contains different things or is used for different purposes H7—JH

She’s a mother and company director in one.   0 It’s a public relations

office, a press office and a private office all in one. M)l

XmLAtb&M: H # — #0 —see also all-in-one ,one after a'nother/ the 'other first one person or thing, and then another, and then another, up to any number or amount —- Ai£ —^££#A£&it&: The bills kept coming in, one after another.          .one and 'all (old-

fashioned, informal) everyone # fv ; A % ; ft A: Happy New Year to one and all!      ! ,one

and 'only used to emphasize that sb is famous A 65; Pi—65; A45 65: Here he is, the one and only Van Morrison! ftMt7, ;&Mt£A$l65?£ •          .one and

the 'same used for emphasis to mean ‘the same’ ( ^ A 51 ) NJ — 7": I never realized Ruth Rendell and Barbara Vine were one and the same (= the same person using two different names), -ft /A A JiiR f'J 7k S • AHA ffl'SSft.*      7Ao .one by 'one separ­ately and in order         M—Mk : I went through the

items on the list one by one. #-±65 ^ @ 0

.one or'two a fewWe’ve had one or two problems—nothing serious. 3% A1A — & IeI M, A M S A A A A 7 65 o .one 'up (on sb) having an advantage over sb B&it — W;       ^ A ) when you’ve seen,

heard, etc. 'one, you’ve seen, heard, etc. them 'all (saying) used to say that all types of the things mentioned are very similar )5r A 65 • • IP A f^J A #;   A

— {K^P^TtrA: I don’t like science fiction novels much.