| 词汇 | 事先 |
| 释义 | 事先事先[shì xiān]1.■in advance; beforehand; prior:事先策划的暗杀a premeditated murder;事先磋商prior consultations; exchange of views in advance;事先做好准备get everything ready beforehand;一切都是事先确定好了的。Everything has been fixed in advance. 常用词组1.■事先编辑 pre-edit;2.■事先接近法 preapproach;3.■事先试验 pretest;4.■事先推断数量 ex ante quantities |
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