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我必须确切地知道我为什么做某项工作。
I have to know exactly why it is I'm doing a particular job.
《柯林斯英汉双解大词典》
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这就是为什么做论坛，让人们获得思想。
That's why I do my forums, to give them access to thought.
youdao
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我不能理解他为什么做这件事。
Why he did it is beyond my comprehension.
youdao
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他为什么做那件事将永远是个谜团。
Why he did it will remain a puzzle for ever.
youdao
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他为什么做那件事依然是个谜。
Why he did it remains a mystery.
youdao
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为什么做玩具相机？
Why make a toy camera?
youdao
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她为什么做那件事仍是一个谜。
The reason why she did it is still a mystery.
youdao
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我们已经遇到了危机，他们为什么做他们的工作？
We have got a crisis why are they doing their job?
youdao
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你们到底为什么做这种事情？
Why( on earth)are you doing such a thing?
youdao
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如果你害怕我担心最好，你为什么做的比这还少？
If you knew I was after the best, why did you do less than the least?
youdao
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你们到底为什么做这种事情？
Why are you doing such a thing?
youdao
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她为什么做那件事的理由仍然不被人知。
The reason why she did it is still unknown.
youdao
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为什么做志愿工作有好处？
Why is it good to volunteer?
youdao
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试问：你为什么做这个？
Begin by asking: Why are you doing this?
youdao
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你为什么做这样的事呢？
Why are you doing it？
youdao
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当问到他为什么做此事时，他说是他的职责。
When he was asked why he did it, he said it was his duty.
youdao
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你为什么做这个？
Why did you do this?
youdao
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问问他们，他们为什么做那些他们正在做的事情。
Ask why they are doing what they are doing.
youdao
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她为什么做这个？
Why did she do it?
youdao
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士兵们明白在这里他们正在做着什么，也明白为什么做。
Soldiers understand what they are doing here and why.
youdao
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现在为什么做这种改变？为什么我们要停止判断事物好坏？为什么我们要停止期待？
But why make this change? Why should we stop judging? Why should we stop expecting?
youdao
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告诉我你为什么这样做。
Tell me why you did it.
《牛津词典》
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对他为什么这么做妄加猜测毫无用处。
It is useless to speculate why he did it.
《牛津词典》
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我直到今天仍然不明白他当时为什么那样做。
To this day, I still don't understand why he did it.
《牛津词典》
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他们为什么不取消中间商，让我们自己来做呢？
Why don't they cut out the middleman and let us do it ourselves?
《柯林斯英汉双解大词典》
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我必须这样做——尽管我不知道为什么。
I must—though I don't know why.
youdao
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那人问他们为什么这样做。
The man asked why they had done this.
youdao
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他沮丧地叫道：“我究竟为什么要这样做？”
He cried dismally, "why ever did I do it?"
youdao
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他沮丧地叫道：“我究竟为什么要这样做？”
He cried dismally, "why ever did I do it?"
youdao