- 事先: in advance; beforehand; prio ...
- 缓冲: buffer; cushion; slow down a ...
- 事先: 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
- 事先,预先: in advance
- 事先的: prior
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