我们怎样才能知道这个签字和文件是同一个时间的呢？

How do we know that the signature is contemporaneous with the document?

《牛津词典》

如何才能知道真正需要什么软件？

How do you know what software you really need?

youdao

当目标实现的时候我如何才能知道？

How will I know when it is achieved?

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我们怎样才能知道某项决定是否被执行？

How do we know if a decision will be implemented?

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怎样才能知道自己有没有仆人的心态呢？

How can you know if you have the heart of a servant?

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如何才能知道一个社交网站不再前卫了？

How do you know when a social networking site isn't cool anymore?

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如何才能知道您何时就完成了所有任务呢？

How else are you going to know when you're done?

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他怎么样才能知道呢？

How would he ever know?

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那么怎样才能知道问题出在那里呢？

How do you know what the problem is?

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只有你自己才能知道。

Only you can know.

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那么，要如何才能知道自己是不是外向的呢？

How do you know if you're an extrovert?

youdao

两年之后我们才能知道它是否有效。

It will be two years before we know whether it is effective.

youdao

只有在你们测试了以后才能知道。

We'll only know that after you've taken the test.

youdao

我们怎么才能知道这是一个好的模型？

How do we know if this is a good model?

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只有你见到了主，我们才能知道一切。

Then we will know what everything is like.

youdao

A：怎样才能知道传真已经发出去了？

A: How do you know if your fax is sent?

youdao

但研究人员如何才能知道人们做梦时在看哪儿呢？

But how do researchers know where someone is looking while they dream?

youdao

只有在头脑静止的时候你才能知道它。

You can know it only when the mind is still.

youdao

那我什么时候才能知道是否被录用呢？

When can I know whether I am accepted or not?

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我怎么才能知道我喝够了呢？

Can I know when I have had enough?

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我们什么时候才能知道呢？

And when shall we know?

youdao

更多的细节还是要等见到他们才能知道。

Stay tuned for more details as they arrive.

youdao

你只有去做才能知道结果。

The only way it will happen is if you make it happen.

youdao

我怎么才能知道我以后有可能记忆衰退？

HOW CAN I TELL IF I MIGHT LOSE MY MEMORY LATER IN LIFE?

youdao

如何才能知道所食用的食品来自何处呢？

How do you know the origin of the food you eat?

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我们怎么样才能知道它已经撑不住了呢？

I wondered how we would know if she had fatigued.

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一般需要几周后才能知道手术的效果如何。

It can take several weeks to tell how well the operation worked.

youdao

一般需要几周后才能知道手术的效果如何。

It can take several weeks to tell how well the operation worked.

youdao