inn-purity
/im'pjuerati;
NAmE -'pjur-/ noun (pi -les) 1 [C] a substance that
is present in small amounts in another substance, making it dirty or of poor
quality 杂质：A filter will remove most impurities
found in water.
会滤掉水中的大部分杂质。2 [U】the state of being
dirty or not pure 肮脏；不纯；淫秒 033 purity im-pute
/un'pjuit/ im'putc sth to sb/sth (for
mal) to say, often
unfairly, that sb is responsible for sth or has a particular quality (常指不公正地把责任等）
归咎于 CTiTl attribute ► im-put-ation /.impju'teiXn/ noun [U, C]
in /m/
prep., adv.,
adj., noun
m prep. Hiding For the special uses
of in in phrasal verbs, look at the entries for the verbs. For example deal in
sth is in the phrasal verb section at deal. * in 在短语动
词中的f殊用法见有关动词词条。如deal in sth在词条 deal 的短语动词部分。1 at
a point within an area or a 在（某范围或空间内的）某一点：a country h .非洲的.一个国家◊ The fcids
were piaying in. the street.無手们在街i：玩。◊ Jt’s in. that
drawer.它放在那
个抽屉里。◊ J read about
it in the paper.我是在也纸i： Sill这事的。2 within the shape
sth; surrounded by sth在（某物的形体或范围）中；在…内；在…中：She was Zyfng fn bed.她躺在床上。.◊ sitting fn cm
armchair 坐在故手椅里◊ leave the fn
the Zocfc.把钥匙留在锁
孔里。◊ Soafc ft in coM water.把这东西浸泡4冷水里。
3 into sth 进入：ffe dipped his brush i;i the paint.他把 毛刷在涂料里蘸 了蘸。◊ S/ie got in
her car and drove 她钻进汽车里，开去了。4 forming the whole or
part of sth/sb; contained witiiin sth/sb 构成…的整体（或部 分 > ;包含在…之内：rhere are 32 days
fn May.五另# ■有 31
天。◊ aH the paintings m t/ie coHecrion 收藏品丰 的所有画作◊ J recognize
his/ather in hfm (= iiis character is similar to his father’s). 我在他身上 看到了他父亲 的气质。5 during
a period of time在（某段时间）内：
fn
2005 在 2005 年◊ in the 18th
century 在 18 世纪 0 in
spring/summer/autumn/winter 在春 / 貪 / 秋 / 冬天◊ .in the /aH 在秋天◊ in March 在三月◊ m the morning/
a/itemooa/evemng 在上午 / 下午 /
晚上 oJ’m
getting /orget/W fn my oW age.義上了年纪，变得健忘了。
6 after a particular length of time 在（某段时间）之
。后to return fn a/ew
mmutes/hours/days/monf/is.几 斗钟/凡小时A几天/几个月后回来◊ It wfH be
ready in a week’s time i(=.one week from now).只需一周的时间就 会准备好。◊
She 〖eamf to drive in three. vvee/«
(=■ a^:er three weeks she could drive).她花三个星期就^会了开
车。7 (used in negative
sentences or after yiirst，Z〇5t， etc.用 #
否定句或 first、last i 等之后）for a particular
period of time 在（某段间）内：J haven’t seen him in
years.我有好些年没见过他了+ ◊ It’s the first letter I’ve had in ten days•这是我十天来收到的第一封信。
8 wearing sth 穿着；戴着：.dressed in their best clothes 穿着他们最好的衣服◊ the man in the
hat戴帽子的男子
◊
to 如 in
u'智襄一服的5知gH in. 摊奪
着一身黑。9 used to describe』physical surroundings (用以治述具体的环境）：.We went out in the
rain•我们 冒雨‘出'去 了。◊ He was sitting
aZone fn the darfcness.他 独自坐在黑暗中。10 used to show a
state or condition (表示状态或状况）：in !ove/我恋爱了！ ◊
The house is fn good repair.这所房子保养_不_。◊ J must put my q^airs h order.我必途亟理整理我的事务。◊ a man fn his thirties —位三十多岁的男子◊ rhe do^odfZs were bZoom.'水i山花也开了。11 involved in sth;
taking part in sth 参与；参加：to act i'n a pkiy 参加演戏 12 used to show sb’s
job or profession ’（显示工作歲职
业）：Zfe is i‘n the army. ‘ 在军队服役。◊ She’s in computers•她从事计算机业。、◊ in business 众商 13
used to show the form, shape, arrangement or quantity of sth (显示某物的形式、形状、安排或数量> anovdh three
parts分为三部如小说◊ RoW it up in a
baH.把它卷 成-r个球。◊ They sat in
rows.他们一排t排地坐着。◊ People/focfced
in their t/iousanck to see her•现场聚集了
数以千计的人争相目睹她的风采。14 used to show the
language，material, etc. used (表示使用的语言、材料
等）：Say i't in £ngHsh.用英语说■吧。◊ She wrote in pencii.她角铅笔写的。◊ Put it in writing.把它写下来。
/
paid in cash.我用现金支付的。◊ He spoke in a.loud
voice•他大声说话。15 concerning sth关于；在…方 面：S/ie was.not kicking
in courage.她并不缺乏勇气。' ◊
a country rich in mineral 矿藏丰富的国家◊ three metres
in Zength 三米长 16
while doing sth; while sth is happening 做…#;…发生时;.当…时：Jn attempting to save
the child from drowning, she nearly lost her own Zi：fe•她在抢救落水儿童时，自己差点丧命。◊JnaHthe commotion I forgot to
tell him the news,
我忘了告诉他那个消息。17 used to introduce
t^e name of a person who has a particular quality (引出具某种 品质的人的名％ >
We’re ZosiVig a _/?rst-rate editor in Jen.我们即将失去珍这位一流的编辑。18 used to show a rate
or relative amount _(_ 显示('比率或相对数
量 > :a
gradient 〇/ one fn 月 ve
五分之一的坡 ioatax rate 〇/ 22 pence
in the pound 每英镑 22 便士 的税率 IT»TO1 in that /in 6at/ (formal)
for the reason that; because 原因是；因为：She was /ortimate m
that she had_/Wemis to he?p her•她很幸运，有一些朋友帮助她。
»adv. For the special uses of in in phrasal verbs,
look at the entries for
the verbs. For example fill in (for sb) is in the phrasal verb section at fill.
* in 在短语备词 中@特殊用法见有关动词词条。如fill in (for sb)在词条fill 的短语动词部分。.1 contained within an
object，an area or a substance
在里面；在内：We were Zocfced in•我们 被锁在里面了。◊ Z can’t drinfc coj^ee with mfWc in.我不 i巨喝加牛 的咖啡。2 into an object, an
area or a
substance 进入：She opened the door
ami went fn.她打
.。开门进去了。◊ rhe Wds were pZaying by the river and oneo/themjwnn.孩子们在河玩耍时，其中一个突然
落水宁。'
3 (of people 人)at
home or at a place of work 在家里；在土作单位：Atobody was in when we
caHed.我 们打电话W家M殓A。 PTJ3 out 4 (of trains, buses, etc.
火_、公共汽车等）at the place where
people can get on or 〇舍，for example the
station 在车站；在停靠站：The bus is due in (= it
should arrive) at six.公共汽车应该在
六点钟到站。5 (of letters, etc.信件等）received收到； 被投递到：Apjpifcarions must be
in by ApriZ 30.申请务 必于四月三尤日之前寄到。6 (of the tide潮没）at or towards its
highest point on land 上涨；在最食点：Is the tide coming in or
going out?现在i涨潮还崖'舍潮？
◊
elected 当选：Several new
councillors got in at the Z〇5te〖ecti‘on.几位新政务委员在最近一轮选举中当选。
◊
(in cricket,
baseball，etc.板球、棒球等)if a team or team
member is in，they are batting 击球 9 (in tennis, etc.网球等）if the ball is in, it has landed inside the
line
(球）备垚界内:Her serve wosjuit fn.她发的球刚好落
在界内。IFT7H be in at sth to be present when st±i
happens …发生时在场：They were in at the
start.开始
时M们在场。：be ’in for sth to be going to
experience sth soon, especially
sth unpleasant 艮p 将经 历，即将遭受（不愉快的事）：He’s in/or a s/iocfc/他很
快就会感到震惊的！ ◊
J’m a_/hn‘d we’re in/or a storm.看 杂義们就要遇到风暴了。be/get _ in
on sth (/n/om?fl/)
to be/become involved in sth; to share or know about sth 参与;：了解：耿e to be in on thepian.我很想参与这
项计划。◊ Is sftje
i>i ora t/ie secret?她知道这个秘密吗? be (well) 'in with sb (informal) to be (very) friendly
with sb, and likely to get an advantage from the friendship 和…《十分 >
友好（很可能从中得到好处），in and 'out (of sth) going regularly to a
place 时常出入：He was in and out
o/jai〖/or most o/his h/e.他大半生的时间都是监
狱的常客。
uadj. [usually
before noun] (informal) popular and fashion-
able 流行_;时髮的：Purple is t'he in
colour this spring. 紫色it今年春天的流行色。◊ £x〇tic pets are the in thfng right now.毒异的会物眼〒很时髦。◊ Short skirts
are in ，a^ain.现在又穿短邊手亍。一see also in-joke a noun an in to sth = a way into sth at way n. have an in with sb {especially NAmE) to have influence
with sb 对某人有影响 the ,ins and 'outs (of
sth) all
the details, especially the complicated or difficult ones { % 指复杂或癩的）荃部细节，详情：the ins and outs 〇/the probZem 问题的来龙去脉Jffe quicfcZy Zeamed
the ins and outs 〇/the 他很快就掌握了〇：作的全部诀窍。
in, 〇?/. _in. or ins.) inch 英寸：Height: 6ft 2irh 高 _•
6英尺2英寸
in- prefix /in/ 1 (also il- /il/ im- /im/ ir- /ir/) (in adjectives，adverbs and nouns构成形容词、副词和名词） not; the opposite of 不；非；相反的:in_/3imte
无限◊