1·No close is not close no why!
不准关就是不准关没有为什么！
2·No one knows for sure why adolescence is unique to humans.
没人确切知道为什么青春期是人类独有的。
—— 《柯林斯英汉双解大词典》
3·No one has come up with a definitive answer as to why this should be so.
至于为什么该这样，还没有人给出明确的答复。
—— 《柯林斯英汉双解大词典》
4·Tom wasted no time in telling me why he had come.
汤姆立即告诉我他来的原因。
—— 《柯林斯英汉双解大词典》
5·No one knows why they were painted there.
没人知道为什么它们会被画在那里。
6·No matter why there is growing interest in self help books, it's good to know that help is at hand if we need it.
不管为什么人们对自助书籍越来越感兴趣，知道如果我们需要，帮助就在手边是件好事。
7·No one knows for sure when or why it began to symbolize peace.
没有人确切地知道它是什么时候或者为什么开始成为和平的象征。
8·It must also be shock resistant, which is why no spinning media exists.
它还必须是抗冲击的，这就是为什么没有旋转介质存在的原因。
9·They were puzzled as to why there was no Ice Age.
他们对为什么并没有出现冰川期而感到困惑。
10·There's no reason why I should be one of the worst! I'm one of the best because I try so hard.
没有理由让我成为最糟糕的人！我是最好的，因为我很努力。