| 单词 | beforehand |
| 释义 | beforehand UK [bɪ'fɔ:.hænd] US [-'fɔ:r-] adverb ■earlier (than a particular time) 事先，预先 •I knew she was coming that afternoon because she had phoned beforehand to say so.我知道她那天下午会来，因为她事先打电话跟我说过。 |
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