at a time和at one time的区别

at a time 与 at one time 表示“一次;同时”的意思时,可以互换使用,没有区别。at a time 一次；每次；在某时。at one time 曾经，一度；同时(大多时候可以同at a time 替换）。

Beat in the eggs, one at a time

打入鸡蛋，一次一个。

Blend in the eggs, one at a time, beating well after each one.

一次一个地掺入鸡蛋，每放一个都充分打匀。

The fish lay thousands of eggs at one time.

这种鱼一次产卵数千个。

Everyone has taken a not-so-great class at one time or another ．

每个人都上过一次不太好的课。