| 单词 |
when(when, while, as) |
| 例句 |
when, while, as
这些连词均可表示“当……时”引出时间从句。
when → 所引导的从句，其谓语动词既可是持续动词，也可是短暂动词；谓语动词动作发生的时间可以与主句谓语动词的动作是同时，或之前、之后。
while → 句中的谓语动词应为持续动词，不用短暂动词，谓语动作发生的时间通常与主句谓语动词动作发生时间是同时。
as → 侧重指从句与主句的动作同时进行，谓语动词可以是持续性的，可以是短暂性动词。
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| 随便看 |
- astonish(surprise, amaze, astonish, astound, startle, stun)
- astound(surprise, amaze, astonish, astound, startle, stun)
- astronaut(astronaut, pilot)
- as well(also, too, as well, either, likewise)
- as(when, while, as)
- at(at, in, on)
- athletics(athletics, sport, game)
- at last(at last, at length, eventually, finally, in the end, lastly)
- at length(at last, at length, eventually, finally, in the end, lastly)
- atmosphere(atmosphere, air, gas)
- atom(molecule, atom, particle, speck, grain)
- at once(immediately, instantly, presently, directly, shortly, soon, at once, right away)
- attach(join, combine, unite, connect, link, attach, couple, associate, relate)
- attachment(addition, appendix, attachment, supplement, accessory)
- attachment(affection, love, attachment)
- attack(aggression, invasion, assault, attack, offensive)
- attain(attain, reach, achieve, arrive)
- man-made(artificial, false, synthetic, man-made)
- man(man, mankind, humanity)
- manner(attitude, air, manner)
- manner(behavior, conduct, manner)
- manner(manner, method, way, mode, fashion, means, approach)
- manufacture(make, fabricate, manufacture, produce)
- manufacture(manufacture, produce, product, production)
- map(chart, map, graph)
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