To accurately tell whether someone is sociable, studies show, we need at least a minute, preferably five.

研究表明，要准确判断一个人是否善于交际，我们至少需要一分钟，最好是五分钟。

youdao

He could not tell whether the floor was wood or stone.

他分不清这地板是木头的还是石头的。

《柯林斯英汉双解大词典》

Only time will tell whether Broughton's optimism is justified.

只有时间能证明布劳顿的乐观有没有道理。

《柯林斯英汉双解大词典》

As always in the World Cup, there can only be one winner and only time will tell whether this time round it's the octopus or the parakeet.

VOA: standard.2010.07.09

OK, clearly we'd be much better off if we had some systematic quantitative way to tell whether something would happen spontaneously.

好，如果我们有一些系统定量的方法来判断,一个过程是否会自发进行,那就会更好了。

麻省理工公开课 - 热力学与动力学课程节选

And unlike souls, where it was all rather mysterious, how you could tell whether body whether souls swapping, was taking place or not.

不像灵魂论，那么充满神秘，你如何去辨别肉体,或者，灵魂是否，持续在变化，并不那么神秘。

耶鲁公开课 - 死亡课程节选

Fact 1: It is far too early to tell whether U.S. stimulus policies have worked.

FORBES: Forget Cyprus, Japan Is The Real Crisis

It's too early to tell whether this recession has crimped the birth rate, Haub said.

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And there's no way for others to tell whether that camera is on or off.

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