事先的英文怎么说

12次大中小

事先的英文：
in advance
before
prior

参考例句：

Speak for seats ahead of time
事先申请座位

Claire wished she'd primed Sarah beforehand.
克莱尔真希望她事先指点过萨拉。

The Best impromptu speeches are the ones written well in advance.
最佳的即兴演讲是事先写好了稿子的演讲。

The airmen were under orders to abort their mission if on-board equipment showed the slightest glitch.
飞行员事先接到命令，如果机载装备发生哪怕一点点的故障，也要取消所执行的任务。

The airmen were under orders to abort their mission if on-board equipment showed the slightest glitch
飞行员事先接到命令，如果机载装备发生哪怕一点点的故障，也要取消所执行的任务。

Every question was a trap, a contrived progression towards a preconceived conclusion.
每个问题都是一个陷阱，事先策划好了，一步一步达到早已作出的结论。

Spoken for reserved,etc in advance
事先预订的

In advance; beforehand
预先;事先

A preliminary investigation
事先调查

(of a translation)done without previous preparation
(指翻译)事先无准备的.

advance是什么意思：
v. （使）前进；发展；推进；预付；提出；提前；进展；上涨；被晋升；贷（款）
n. 前进；发展；预付款；增长
adj. 预先的；先行的

Prices are advancing.
各种物价都在上涨。

The advance was sounded.
进军号吹响了。

Petroleum is on the advance.
石油价格正在上涨。

prior是什么意思：
adj. 优先的；在前的；较重要的；有优先权的
n. 上司；会长，副院长；前科；最高执政官

The offer is subject to prior sale.
该报盘以未售出前为准。

I appreciate that you may have prior commitments.
我体谅你可能事先已另有承诺。

I believe that theories are prior to observations as well as to experiments.
我认为理论先于观察，也先于实验。