| 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 |
- backward(back, backward, hind, behind)
- bad(bad, evil, ill, poor, wicked)
- badge(symbol, badge, sign, signal, mark, token, attribute, emblem)
- baffle(puzzle, bewilder, confuse, embarrass, perplex, baffle, confound, distract)
- bag(bag, sack, handbag, purse)
- baggage(baggage, luggage)
- bake(bake, roast, toast)
- balance(remainder, surplus, rest, remains, balance)
- bald(bare, naked, bald, barren)
- ball(ball, dance)
- bandit(robber, thief, burglar, bandit, gangster, pirate)
- band(orchestra, band)
- bank(bank, beach, coast, shore, seaside)
- banquet(banquet, feast, dinner, party)
- barbarous(cruel, brutal, inhuman, savage, barbarous, fierce, ruthless)
- bar(block, bar, hinder, obstruct, prevent, hamper)
- bare(bare, naked, bald, barren)
- bargain(agreement, contract, treaty, convention, bargain, understanding, accord)
- bargain(business, commerce, trade, bargain, deal)
- bar(obstacle, barrier, obstruction, bar, hindrance)
- barren(bare, naked, bald, barren)
- barrier(obstacle, barrier, obstruction, bar, hindrance)
- base(base, basis, foundation, ground)
- basic(basic, essential, fundamental, radical, vital)
- basis(base, basis, foundation, ground)
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