more than; no longer than 只有；仅；刚刚：She’s only 22 and she runs her own
business, h只★ 21 岁就经营会 自己的企业了。◊ It on/y toofc a/ew seconds.那只需要几
秒钟。◊ Jt toofc a /ew
seconds.那只需要几秒钟。
5 not until (直到）…+ ;(只是）…才；We onZy got here yesterday.我们昨天才到这里。◊ (formaf) Only then dfd she realize .t/ie
stress he was under.直到如时她才意
识到他所承受的年力。When only begins a sentence be, do, have, etc. come before the
subject and the main part of the verb.当句_ 以 only 开始时■， be、do、have等词要置于主语和主要动词之请。6 used to say tliat sb can
do no more than what is mentioned, although this is probably not enough 仅此而已;_ 只能： We can on〖y guess what happened.我们_只能猜测发—了
什么事。◊ Jfe couZd onZy
watch /leZpZessfy as the car pZunged into the ravine.他只能眼睁睁地看#汽车冲入峡 谷。◊ Z only hope t/iat she never jfiinds out•我唯有希望
她永远别发现真相。7 used to say that sth will
have a bad effect (用于说明事情的恶果）只会，愈加：J/you do that, it will only make
matters worse.
只会乱上加乱。◊ Trying to reason
with him enrages Mm even more.跟他讲理只会使他更加生气。8〜to do sth used to mention
sth that happens immediately afterwards, especially sth that causes surprise,
disappointment, etc. ^1-;竟然：She turned up the driveway, oniy to jfiind
her way Wocfced.她井’土、自家车
道，不料发现路已被堵。IM not only
. but (also) both ... and ...不但…而且…：He not only read the book, but also
remembered what he had read.
了这本书，而且记得所读的内容。only 'just 1 not long ago/before 刚才；刚刚：We’ve just arrived 我们刚
到。2 almost not备些没；差点没；刚好：He on〖y加tt caught the train.他差点没赶上火车。◊ J can ajQfbrd it,
but just.这东西我刚好买得起。on丨y too ... very 很；非常：J was onfy too phased to
hdp.我非常乐意 # 忙。◊ Chddren can be d妨cuZt as we fcnow onZy too
weZZ. 小孩子往往很难对付，对此我们都非常清楚。you’re only young 'once {saying) young people should enjoy themselves as
much as possible, because they will have to work and worry later in their lives
行乐当及年少时；
青春只有一次一more at eye n., if conj.
■ owy’.（//i/brAWfl/) except that;
but 不过；但是；可是：I’d tove to come, have to work.義也想去，但4我要上 班。◊
tastes Hfce chicfcen, on〖y
stronger.这东西尝起来 像鸡肉，只是味道一点。
.only 'child
noun a child who has no
brothers or sisters 独i子、或女）：rm an oniy cMd.我是独生子。
o«n.o* abbr. {BrB) (used in small advertisements to show
that sth may be sold at a lower price than the price that has been asked) or
near/nearest offer (甩手小广■告
中，表示某物可减价出售丨或接近买方出价，可还价：
Guitar
£200 o.n.o:吉他 200 英镑，可还价。一see also
O.B.O.
,on-'off adj. [only before noun] 1 (of a switch
having the positions ‘on’ and ‘off 开.一关的；双位尚；通断
的；离合的：an on-ojfswitcA 通断异矣
2 (of a
relationship 美糸） interrupteti by periods
when the relationship is nofcontinuing断断续续的；间断的
ono-rhas-tics /.Dna'maestiks; NAmE .aina-/ noun [U] the study of the history and
origin of names, especially names of people (人名等）专有名称词源学；专名学_
ono-mato-poeia /.Dna.maeta'piia; NAmE ,a:n-/ noun [u] {technical # i^) the fact of words containing
sounds similar to the noises they describe, for example hiss; the use of words like this in a piece
of writing 象声；■拟 .声；拟声法，ono.mato.poe.ic /-‘pi:ik/ 〇〇[/•.: Bang and pop are onomatopodc words.
* bang 和 pop 是拟声
'on-ramp noun {NAmE, SAfr£) a road used for driving
onto a major road such as an interstate (高速公路等 的）驶进匝道，驶进坡道
on-rush /'DnrAj; NAmE 'a:n-; 'Din-/ noun [sing.] a strong movement forward; the
sudden development of sth
猛然而来;突如其来
,on-1 screen adj. [only before
noun] 1 appearing or written on the screen of a computer, television or
cinema/movie theater屏幕上的；荧屏的；影视的： on-screen courtroom dramas 突屏播映的■律政戏'◊
on-screen messages 屏幕上的信息 2 connected with the imaginary story of a film/movie and not with real
life 扮演的；屏幕上的；非现实生活的：Ms
on-screen/ather is ako /i/s/ather in reai U/e.他那荧幕上的父亲也每他现
实生活中的父亲。一compare off-screen ► ,on-_screen adv.
onset
/'Dnset; NAmE 'a:n-; 'Din-/ noun [sing.] the beginning of sth，especially
sth unpleasant 开‘，夫生肇始（尤
.指不A的事件）：the onset o/disease/old age/winter 疾 病的发作；老年的开始;冬天的来临
on-shore /'Dnja:(r); NAmE 'a:n-; 'o:n-/ adj. [usually before noun] 1 on ttie land rather
than at sea 函上的：an onshore oil 月eW 陆上油田 2 (of wind 风）blowing from the. sea towards the land 吹向■陆地的；向..岸的► on- shore adv. — compare offshore on-side /.Dn'said; NAmE ,a:n-; ,o:n-/ adj. (in football (soccer), hockey, etc.足球、曲棍球等）in a position on the field where you are allowed
to play the ball 未越位；非越位► on.side fldv. ■ — compare offside IHTWl get/keep sb on'side (6r£) to
get/keep sb^ support 得到（或保持）某人的支持：The party needs to keep the
• national
newspapers onside if fs going to win the Zection.这个政党要想在下次大选中获胜，就需要得
到全国各大报纸的继续支持。
on.slaught
/’raisb:t; ’a:n-;
_a:n-/ nown ~ (against/
on sb/sth) | 〜（of st“）a strong or vioient attack 攻击；
猛攻：the enemy onslaught on our military forces 我军的进攻◊ TVie town survives
the onsZaught 〇/tourists eve^y summer.每年夏天，这座小城都要熬过一段旅游者
蜂拥而至的苦日子。◊ an onsZczught o/abitse —阵谩骂 on-stage /,Dn'steid3； NAmE ,a:n-; ,o:n-/ adj. on the stage in a theatre; in front of an
audience 舞台上的；表演
的：onstage 你/its 舞台上的打斗> on.stage
fl£/v. — compare OFFSTAGE
〇nt〇 tH* (also 'on to) /'mita; before vowels 'ontu; NAmE 'a:n-;
'o:n-/ prep.
1
used with verbs to express movement on or to a
particular place or position •(「与动词连用，表示朝某处
或某位置运动）向，朝：Move t/ie books onto the second she〖/.把书移到二层架子上。◊ She stepped
down介om the train
onto the 她走下火幸来到站台_上。
2
used to show that
sth faces in a particular direction 朝向，面向（某个方向）：77ie window
Zoofced out onto the terrace.窗;^卜•蝰的是露天平台。be 'onto sb 1 (/n/ormo/j to know
about what sb has done wrong 发现丨.知人做了:坏事.）：She knew the police would
be onto t/iem.地^道W方将追查他们。2 to be talking to sb，usually in
order to ask or teil them sth 与…谈话； 询问：rhey’ve been
onto me /or ages to get a job•很久以
来，他们一直催促我找份工作。be‘onto sth to know about
sth or be in a situation that could lead to a good result for you 了解；掌握；处于有利地位：Scientists
bdieve they are onto something big•科学家相信，他们将
会有重大发现。◊ She’s onto a good
thing with t/iat new job.她在新工作中将大有作为。
〇nt〇l-〇gy /Dn'tDlad3i; NAmE ain'tail-/ noun [U] a branch of
philosophy that deals with the nature of existence 本体论► onto-logic.al /,Dnte’li)d3ikl; ,a:nt3’la:d3-/
adj.
onus /'aunss; NAmE 'ounas/ noun (usually the onus) [sing.] the responsibility for sth 职责；责任：77ie
onus is on employers to follow
health and safety laws.
雇主有义务遵行健康安全法。
on^ward /'mwad; NAmE 'ainward; 'o:n-/ adj. [only before .noun] (/b/777fl/)
continuing or moving forward 继续的；
向前的：Ticket prices include your
flight and onward raii扣umey.票价包括您的飞行航程和接续的铁路旅费。
on-wards /'onwadz; NAmE 'arnwardz; 'o:n-/ [especially Br£) (NAmE usually on-ward /'Dnwad; NAmE 'ainward; 'o:n-/) adv. 1 from ... onwards continuing
from a particular time 从（某时）起一直：They lived there }ir〇m the onwarcis.他们从1980年代舍一直住在那
里。◊ rhe poo〖 is
.open_/irom