释义
- 1. in advance
- 2. before the event
- 3. beforehand
- 4. prior
词语关系
Antonyms
1 itemSynonyms
2 itemsUsage notes
Common mistakes
Do not use 事先 as a verb meaning 'to advance'; use 提前 instead, as in 提前时间 (advance the time), not 事先时间.
Formality
Often used in formal contexts, such as giving prior notice or making arrangements in advance.
例句
显示 2 条我 事先 不知道这件事。
I didn't know about this beforehand.
你必須 事先 預約。
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