Why not buy a second-hand one on the Internet?

为什么不在网上买一个二手的呢？

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The flower hesitated for a second and said, "Why are you so happy? You are not young and maybe you don't have many days left."

花儿犹豫了一下，说：“你为什么这么高兴？你已经不再年轻，也许你时日不多了。”

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A second puzzle is why the effect has not been arbitraged away.

第二个谜团是为什么该效应没有因为套利而消失。

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It's in response to what seems to have been an aesthetic reaction to the poem that the printer of Paradise Lost asked Milton, went back to Milton and asked him to append a note to the book's second printing -- to append a note that explains why the poem rhymes not.

这是弥尔顿对《失乐园》的出版商的答复,出版商问弥尔顿关于此诗的美学问题，他找到弥尔顿，让他给此诗的第二次印刷附一个,注解--附个注解解释这诗为什么不押韵。

耶鲁公开课 - 弥尔顿课程节选

It is not clear why members of the second chamber elected at the same as members of the European Parliament will, given the turnout in Euro-elections, enjoy notable popular legitimacy.

BBC: Elections don't equal democracy

England's first-half performance was very good with the players they had, so why not continue that with the same players in the second half and then make changes later?

BBC: Butcher's England verdict

Questions have to be asked why Britain, with its 60m inhabitants, should have a veto and not India with its more than one billion, or why Japan, the world's second biggest economy, does not have a veto, though France, with an economy less than half the size, does?

ECONOMIST: The United Nations