先；事先的英文

• in advance

• 先:    earlier; before; first; in a ...
• 事先:    in advance; beforehand; prio ...
• 先:    名词1.(时间或次序在前的) earlier; before; first; in advance 有言在先 make clear beforehand; 争先恐后 strive to be the first and fear to lag behind; 你不必先付款。 you don't have to pay in advance. 你先拟个提纲再写。 make an outline before you start writing. 他比我先到。 he arrived earlier than i did.; he arrived there before me. 他在班上遥遥领先。 he is far in advance of his class. 同志们先别走。 don't go yet, comrades. 我先说几句。 let me say a few words first. 先做学生,再做先生。 be a pupil before you become a teacher.2.(祖先; 上代) elder generation; ancestor 祖先 ancestor: forefather3.(尊称死去的人) deceased; late 先父 my late father4.[口语] (先前) earlier on; before 你先怎么不告诉我? why didn't you tell me before?5.(姓氏) a surname 先轸 xian zhen
• 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
• 前，先:    pre