once
adverb
uk/wʌns/us/wʌns/onceadverb(ONE TIME)
A2
onesingletime:
一次，一回I wentsailingonce, but I didn't like it.我玩过一次帆船，不过我不喜欢。
We havelunchtogether once amonth.我们每个月在一起吃一次午餐。
at once
C1
at the sametime:
同时They allstartedtalkingat once.他们同时开始讲起话来。
for once
B2
used when somethinghappensthat does not usuallyhappen:
难得一次For once, thebuscame ontime.难得一次公共汽车准点到达。
just this once
used to say that you will only do orrequestsomething on thisparticularoccasion:
就这一次，仅此一回Allright, I'lllendyou themoney- just this once.好吧，我把钱借给你——仅此一回。
once again(alsoonce more)
B1
again, as hashappenedbefore:
Once again,racistattacksareincreasingacrossEurope.种族主义攻势在整个欧洲又开始抬头。
once more
B1
one moretime:
再一次I'd like tovisitthecampusonce more before weleave.我想在我们离开之前再去参观一下大学。
again, as hashappenedbefore:
再次，又一次When myfathercamehome, everythingfeltrightonce more.当父亲回到家时，一切又变好了。
once or twice
a fewtimes:
几次，一两次I'veseenhim once ortwiceintown.我在城里见过他几次。
(every) once in a while
B2
sometimes but not often:
偶尔，间或；有时Wemeetforlunchonce in a while.我们偶尔见面吃顿午餐。
once and for all
C2
completelyand in a way that willfinallysolveaproblem:
彻底了结地；一劳永逸地Ourintentionis todestroytheiroffensivecapabilityonce and for all.我们的目的是彻底摧毁他们的进攻能力。
once in a lifetime
onlylikelytohappenonce in a person'slife:
一生只有一次；千载难逢地；难得地Anopportunityas good as thisarisesonce in alifetime.像这样好的机会可是千载难逢呀。
See also
once-in-a-lifetime
the once
UK
on asingleoccasion:
一次，一回I've onlyplayedrugbythe once, and I neverwanttoplayit again.我只打过一次橄榄球，我再也不想打了。
- I go toaerobicsonce aweek.
- I didmeethim once and it was anexperienceI shall neverforget.
- Thebabyonlyfeedsonce anightat themoment,thankgoodness.
- If Ilookflusteredit's because I'mtryingto do so many things at once.
- She'sdecidedto write hermemoirsto set therecordstraightonce and for all.
Rarely & infrequently
- (every) now and then/againidiom
- blue moon
- ever and anon
- every
- few
- fit
- in/by fits and startsidiom
- occasion
- occasional
- occasionally
- odd
- odd jobs
- once in a blue moonidiom
- one
- one-time
- rarely
- seldom
- ship
- sometimes
- time
You can also find related words, phrases, and synonyms in the topics:
Simultaneous and consecutive
Points in time
Continually & repeatedly
Complete and whole
Unique and unusual
onceadverb(PAST)
B1
in the past, but not now:
从前，以前；曾经，一度Thishouseoncebelongedto mygrandfather.这所房子曾属于我的祖父。
Computers are muchcheapernowadaysthan they once were.如今计算机要比以前便宜多了。
Once-thrivingvillagesstanddesertedand inruins.昔日繁荣的村庄今遭废弃，满目疮痍。
- Turkeywas once animportantcolonialpower.
- Englandwas once adenselywoodedcountry.
- Cancersufferersnolongerfacecertaindeathas they once did.
- Shops of thistype, oncerare, are nownumerous.
- Anarticleon thistopicwould once have beenconsideredofflimits.
In the past
- ago
- any moreidiom
- anymore
- back in the dayidiom
- back thenidiom
- clock
- departed
- dim
- flood
- many moons agoidiom
- mist
- moon
- more
- no longeridiom
- rewind the clockidiom
- sometime
- step
- step back (in time)idiom
- the mists of timeidiom
- the status quo ante
Grammar
Once
Once is an adverb or conjunction.…Onceas an adverb
We use once as an adverb to mean ‘one single time’:…Onceas a conjunction
We use once as a conjunction meaning ‘as soon as’ or ‘after’:…Idiom
once upon a time
once
conjunction
uk/wʌns/us/wʌns/B2
assoonas, or from themomentwhen:
一…就；一旦…就Once I'vefoundsomewheretoliveI'llsendyou myaddress.我一找到住的地方就把地址告诉你。
Remember that you won't beabletocancelthecontractonce you'vesigned.记住一旦你签了字就不能取消合同了。
at once
B1
immediately:
立刻，马上Iknewat once that I'd like it here.我立刻知道我会喜欢这里的。
- Decoding thepaintingsis notdifficultonce youknowwhat thecomponentpartssymbolize.
- You'llfeelbetteronce you've got somehotsoupdown you.
- We can'taffordto make anyfalsemovesonce we're inenemyterritory.
- Fourteenmilesisfurtherthan you'dthinkonce youstarttorunit.
- My newhikingbootswill begreatonce I'vebrokenthem in.
Simultaneous and consecutive
- accompany
- all the whileidiom
- along
- along the wayidiom
- alternate
- even
- go along
- in rotationidiom
- in tandemidiom
- in the processidiom
- live stream
- process
- step
- successive
- successively
- sync
- synchronized
- through
- under
- while
You can also find related words, phrases, and synonyms in the topics:
Immediately
Grammar
Once
Once is an adverb or conjunction.…Onceas an adverb
We use once as an adverb to mean ‘one single time’:…Onceas a conjunction
We use once as a conjunction meaning ‘as soon as’ or ‘after’:…Idioms
all at once
once bitten, twice shy