first和firstly和at first的区别

first和firstly和at first的区别

first of all首先，用于开场白 

first第一，首先。除了用于开场白，还有第一的意思 

at first，在第一的位置，一开始……，强调第一状态（时间、空间） 

firstly，形容词，强调第一个（做完的），最先的

first有四个词形：adj. adv. n. pron. 这里主要谈adj.和adv.

first adj. 序数词 第一的

Example: He was the first student who arrived at the classroom.

adv. 首先

First I fed the baby. Then I made myself a sandwich.

at first是一个介词短语在句中充当状语

首先

At first I was nervous, but I soon started to relax.

补充一个firstly 修饰句子的副词 首先

The plan was not practical, firstly because of the cost, and secondly because local

people did not support it.