at a time
at
æt
āt
a
ə
ē
time
taɪm
taim

“at a time”的英语定义和含义

at a time
01

一次, 逐一

used to describe doing things in separate amounts, steps, or groups instead of all at once 
语法信息
例子
They can only serve one customer at a time during peak hours. 

在高峰时段,他们一次只能服务一位顾客。

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