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.

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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