You just never know!

只是你不知道！

youdao

You just never know what will happen.

你永远不知道会发生什么。

youdao

You just never know.

你永远也不会知道。

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

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

You never know when one of these could just do the trick.

你永远不会知道,里面的哪个正好是这样子的。

麻省理工公开课 - 固态化学导论课程节选

You just never know until it happens to you I suppose, how a person reacts.

NPR: Ray Davies: Rock Legend Rocks On

Which is exactly the point: You do something off the cuff and you just never know.

WSJ: Katherine Rosman on the Joys of Impulse Buying

Sure, in a joint tenants with rights of survivorship situation the surviving spouse will generally retain survivor rights but you just never know.

FORBES: Till Death Do Us Part Stumps Stockbroker