| 单词 | until |
| 释义 | until From Longman Dictionary of Contemporary Englishuntilun‧til /ʌnˈtɪl, ən-/ ●●● S1 W1 preposition, conjunction1 UNTILif something happens until a particular time, it continues and then stops at that timeThe ticket is valid until March.He waited until she had finished speaking.Until recently, Anna worked as a teacher in Japan.Up until last year, they didn’t even own a car.2 → not untilRegisterIn everyday English, people often say till rather than until:I’ll wait till you get back.GRAMMAR: Choosing the right tense• You use the simple present tense with until: I will wait until I hear from you. • Don’t use ‘will’ in the clause after until. ✗Don’t say: I will wait until I will hear from you. • You can also use the present perfect tense with until: I will wait until I have heard from you.Stir until the sugar has dissolved. ✗Don’t say: until I will have heard from you | until the sugar will have dissolved• You can also use the past perfect tense with until: I waited until the train had left the station.USAGE: Until now, so far• You usually use until now when a situation has just ended or changed: I have never thought about it until now (=but now I have thought about it).• You use so far when a situation has not changed: We don't have any news about him so far. ✗Don’t say: We don't have any news about him until now.Examples from the CorpusUp until• Which has always guaranteed Caleb a birthday the whole world celebrates. Up until now.• Instead he gives a remarkable answer. Up until seven years ago, he says, he thought this a good thing.Origin until (1100-1200) un- “unto, until” + till |
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