疑问副词
中文翻译：为什么
同义词：
['why', 'how', 'why not']
例句：
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1.I don't understand how you can be so calm when everything is falling apart.
我不明白你怎么能在这样的情况下保持冷静。
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2.How come you're late again?
你怎么又迟到了？
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3. Why do you always have to ask me that question?
你为什么总是问那个问题？