首先英文用法

首先 1.in the first place 2.firstRelative explainations:3.begin...with 4.for one thing...(for another) 5.first of all 6.to begin with 7.imprimis 8.in the first instance 9.firstly 10.of all things 11.above all 12.to start with 13.primarily 14.threshold 15.at a first brush 16.first and foremost 17.the first thing 18.in the beginning Examples:那不是个好办法，首先没人会帮我们的忙。It is not a good idea. For one thing, nobody will help us.我首先是一个教师, 其次才是一个作家。I am a teacher in the first place and a writer in the next place.婚姻首先是一种契约，它必须以公正为制约。Marriage is, first of all, a contract which must be governed by justice.

first, first off, in the first place, first of all...firstly, secondly...at last...in the long run, at long last

一楼的虽然很全面但是有些不太常用，有的用法有限定的范围，但是最大众化的是at first几乎可以和所有的进行转换

首先的英语是at first。

短语

at first sight 乍一看 ; 初看起来 ; 一见就 ; 一眼看去

love at first sight一见锺情 ; 一见倾心 ; 心心爱恋

at first glance 乍看之下 ; 乍看

例句

At first she was flattered by his devotion.

最初他的挚爱使她感到受宠若惊。

近义词：

at the beginning

意思是：首先；从一开始；起初；从头开始。

短语

at the beginning of 在…起始 ; 起初 ; 伊始 ; 开始

At the beginning of life 人之初 ; 人之初专辑

at first at the beginning 起先 ; 开始的时候

例句

The wedding will be at the beginning of March.

婚礼将于3月初举行。