who knows
US /huː noʊz/
UK /huː nəʊz/
短语
谁知道, 天晓得
used to say that you do not know something and that you think no one else does either
示例:
•
Who knows what will happen tomorrow?
谁知道明天会发生什么？
•
Maybe he'll come, maybe not. Who knows?
他也许会来，也许不会。谁知道呢？