Hayley教口语，“谁知道呢”用英语怎么说？

 who can say 

used for saying that no one knows the answer to a particular question or knows what will happen in the future

在表达没有人知道一个特定问题的答案，或者知道未来会发生什么时，我们会使用这个短语

A: What does the future hold, now that you've left the music industry?

既然你已经离开了音乐行业，你的未来会怎样?

B: Who can say, really? I've always been interested in writing a novel, so I may pursue that.

说真的，谁知道呢?我一直对写小说感兴趣，所以我可能会从事写作。

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