Keep your eye on these jokers, you never know what they will come up with.

盯住这些家伙，你永远不知道他们会想出什么来。

《柯林斯英汉双解大词典》

You never know what to expect with her. She's so temperamental.

你永远说不清她要干什么。她一时一变。

《牛津词典》

What a girl wants you don't guess. You never know.

女孩的心事你别猜，猜来猜去也猜不明白。

youdao

"I'm just doing what I know and I'm doing what you taught me." "I never taught you to be a thief."

VOA: standard.2010.07.16

To put it differently, in order to know what "Dogs" means, you never had to learn the word "Dogs."

换个说法,为了知道"狗狗们"的意思,你不需要去学"狗狗们"这个词

耶鲁公开课 - 心理学导论课程节选

just 'cause you will never know what you're going to get.

就因为你永远也不知道在那里会有什么。

圣莫妮卡和洛杉矶 - SpeakingMax英语口语达人

In simplest terms, you never know what might happen to your job, and you never know what opportunities are out there waiting for you.

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But, of course, in science you can never know what you don't know, and so painfully, gingerly, and on occasion delightfully, he tried to anticipate his critics and get his idea ready.

NPR: Charles Darwin and the Racing Asparagus

You will never know what can work better unless you try different things out.

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