at a time的英文翻译是什么意思，词典释义与在线翻译：
"he took three cookies at a time"
at a time的用法和样例：
- He rises to the bait every time.
- We pay a flat rate for every telephone call.
- Every time a bus came, the crowd surged forward.
- He can drink two bottles of wine at one time.
- a bit at a time 一步一步地(逐渐地)...