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.
通常可互用,但有差别,需查词典体会.
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.
通常可互用,但有差别,需查词典体会.