when

1 He retired in 1998, since when he has been devoting his time to gardening.

2 Among the annoying challenges facing the middle class is one that will probably go unmentioned in the next presidential campaign: What happens when the robots come for their jobs?

下届总统大选中可能会避而不谈的问题是中产阶级面临的令人烦恼不已的难题之一：如果机器人开始抢夺他们的工作，会发生什么?

3 Having arisen from economic causes, will monogamy then disappear when these causes disappear?

可是,既然一夫一妻制是由于经济的原因而产生的,那么当这种原因消失的时候, 它是不是也要消失 呢 ?

4 Why subject himself to trial by fire when he could simply switch party?

那么,既然可以易党,那又何必让自己身陷囹圄 呢 ?

5 He taked a big chance when he made the investment.

当时他投资时是冒了大风险的.

6 What does the man do when he engages in writing?.

在写作的时候，男士会做什么？。

7 When investors put up money to build, say, a nuclear power plant, they expect to earn that money back over the planned life of the plant, which is typically between 40 and 60 years.

当投资者拿出钱来投资，比如建设一座核电厂，他们希望在电厂寿命周期内将钱赚回来，这通常要花费 40 到 60 年的时间。

8 She was seven months pregnant with her second child Nate when doctors found the tumor.

当她从医生那里得知自己身患癌症这个噩耗的时候,她的第二个孩子纳特即将出世,她当时已经有了七个月的身孕.

9 The outbreak came to global notice in late April 2009, when Mexican authorities noted an unusually large number of hospitalizations and deaths among healthy adults.

该疫情的爆发在2009年4月末引起了全球性的关注，当时墨西哥当局注意到健康 的成年人中出现了异常多的住院治疗和死亡病例。 

10 What does Charles say songs can do when he sings them?.

Charles 在唱歌的时候歌曲会带来什么感受？。

11 Can you spare five minutes when it's convenient?

方便时能占用你五分钟时间吗？

12 When do you expect to open the tender?

胡:贵公司准备什么时候开标?

13 Nevertheless, when I got up to speak , loud protesters attempted to drown me out.

他强烈地表明, 既然我是三军总司令,就应该受到尊重.

14 We came a week ago, since when the weather has been bad.

我们一星期前来到这里, 从那时起天气一直不好.

15 When (= in what circumstances) would such a solution be possible?

什么情况下可以这么解决？

16 Vanity is a constant; people will only start shopping more sustainability when they can’t afford not to.

虚荣之心人皆有之；只有在无力支付不可持续性购物的时候，人们才会开始可持续性购物。

17 He gave no indication of when he might return to Nigeria.

同时总统没有给出回尼日利亚的确定日期.

18 When a net requirement exists, MRP creates a planned order to fill it.

当净需求存在时, MRP创建 计划订单满足需求.

19 The court clerk will notify the witness when and where to appear.

法院办事员将通知证人出庭的时间及地点.

20 You begin to infer a context for the text, for instance, by making decisions about what kind of speech event is involved: who is making the utterance, to whom, when and where.

你开始为文本推理出一个语境，比如，确定涉及何种言语事件：说者是谁，在对谁说，什么时间，什么地点。

1 在…之后

IN past subsequent to

2 在那时

at the time

3 场合

occasion instance moment context conjuncture

4 倘若

if provided providing supposing sobeit suppose suppose that in the event of in case of provided that

5 当时

then moment instant

6 鉴于

whereas after considering

7 时机

opportunity occasion

8 虽然

howbeit as while though although altho with with all not but As if albeit notwithstanding even though much as after in despite of not but that not but what whenas for despite for all that what though yet AS no thanks to for all even if whilst

9 当…时

As as as and when if and when in come

10 其时

just then there wherein meanwhile

11 就在那时

moment there and then

12 当场

in tracks on the spot in the act in flagrante in the act of doing on the ground

13 尽管

even notwithstanding algate as while though albeit with after through despite maugre natheless May with all in the face of as as yet nonetheless irregardless although whereas have only got to for all in spite of never mind that have only to

14 如果

if An if peradventure I will teach you to do I'm blowed if I'll be beggared if I do Strike me dead if I'll eat my hat if given supposing sobeit suppose so that in case of if at all assuming have in case on condition

15 假如

be provided that if so suppose that in the event that

16 当

as

17 什么时候

since

18 然后

then next and then so now afterwards whereafter

19 日期

datal time date day term dateline

20 在…期间

IN while on by over through during under in the course of over the course of

21 既然

as now since being as as long as As insomuch seeing forasmuch forasmuch as now that being that for as much as in as much whereas whenas seeing that in as much as so long as after

22 然而

but still however though yet anyway notwithstanding withal natheless while at the same time but then all the same not but what howbeit nevertheless nonetheless where whenas and yet none the less although whereas mark you but then again

23 刚…就

no sooner than

24 不论何时

whensoever

25 但是

however nonetheless and but only while although whereas

26 那时

then now thereat of the day thereabouts

27 一…就

whenever AND immediately instantly moment hardly before scarcely when once directly no sooner than the moment minute by at the drop of a hat on the minute that the minute the moment that as no soonerthan as soon as the instant

28 当…的时候

while pending

29 在…的同时

as

30 每当

whenever once as often as

31 可是

though AND but only however yet at the same time while except now well

32 什么场合

whenever

33 时候

time weather

34 就

just before accede place install instal

35 时间

time temporal horary horal while space moment sand vintage tide streak lapse mealtime time of day syne the enemy hour chance tense time-interval

36 考虑到

whereas with from given consider accommodate considering in consideration of in view of sake saving allow cater in the light of in deference to for regard think take cognizance of make allowances in light of seeing that make allowance for take into account have in mind allow for mindful further to make allowances for think of think about keep in mind keep in mind that bear in mind take into consideration bear in mind that take account of

37 在…时

ON At in the breath for while whilst

38 却

else while

39 从…以后

since

40 有以下用法

maybe perhaps thus otherwise somehow hence my that you on by but we one so there which what up out like some other how than no only her over now many because where much such before here really same both off last own between little without however next why lot once within though bit several either yet below past rather quite half outside inside behind near forward throughout plus former round beyond whatever immediately whose plenty none indeed unlike neither whenever everywhere alongside besides latter wherever beneath minus whichever further suchlike who them me us him whoever be have need become

41 在…的时候

while by pending on

42 无论何时

if whenever

43 在…情况下

under