lifetime基本解释

n,一生；寿命；终生；使用期,同近

It’s the sort of opportunity you see only once in a lifetime..这种机会你一辈子也只能碰到一次。

一生；寿命；终生；使用期英释nnthe period of time during which someone is alive or something exists

of a lifetime,一生最…的；终身难遇的.短语