"who knows" in Chinese (Simplified)
谁知道
Definition
用于表示没有人知道答案，或者表达不确定和神秘感的短语。
Usage Notes (Chinese (Simplified))
在非正式场合极为常用。通常单独使用或放在句尾，表示怀疑、惊讶或无人知晓。不是实际提问。
Examples
Who knows where my keys went.
**谁知道**我的钥匙去哪了。
Will it rain tomorrow? Who knows.
明天会下雨吗？**谁知道**。
Who knows if she will come to the party.
**谁知道**她会不会来参加聚会。
I sent him a message last week and still no reply—who knows what happened.
我上周给他发了信息还没回——**谁知道**发生了什么。
Maybe we'll win the lottery someday—who knows!
也许我们有一天会中彩票——**谁知道**！
He's always late. Will he actually show up on time today? Who knows.
他总是迟到。他今天会准时吗？**谁知道**。