| before | |
| 级别 | 第1级 |
| 音标 | [ bɪˈfɔ:(r) ] |
| 解释 | prep./conj.在…以前 |
| 英英释义 | at or during a time earlier than (the thing mentioned ) |
| 发音 |  |
| 例句 |
1. She needs the work done before tomorrow. 她必须在明天以前完成这项工作。 2. I must finish this letter before I go home. 我必须在回家以前写完这封信。 |
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