| 词汇 | grammar_british-grammar_once |
| 语种 | 英语、汉语、英汉翻译、汉英翻译 |
| 释义 | OnceOnce is an adverb or conjunction. Once as an adverbWe use once as an adverb to mean ‘one single time’:
We say once a + singular time expression and once every + plural time expression to talk about how often something happens:
We also use once to mean ‘at a time in the past but not now’. In this meaning, we often use it in mid position (between the subject and the main verb, or after the modal verb or first auxiliary verb, or after be as a main verb):
The phrase once upon a time is used at the start of children’s stories. We sometimes use it to mean ‘long ago’:
Once as a conjunctionWe use once as a conjunction meaning ‘as soon as’ or ‘after’:
We don’t use shall or will in the clause with once:
See also: Conjunctions |
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