通常一种语言的消亡是由于父母不希望子女再使用这种语言。

Normally languages die out because it is parents deciding they don't want their children to speak it.

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因此，欧菲莉亚的父亲普罗尼尔斯因为哈姆雷特怪异的行为举止而不希望他的女儿再爱他。

Therefore, Polonius, Ophelia 's father, did not want his daughter to love Hamlet anymore because of his strange behavior.

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而能保持这一庞大水系统洁净的则是由泥土、植物、动物组成的网络。当水不接触它们时，这个系统就不能再保持正常了。

What keeps this vast system clean is a web of earth, plants and animals; when water cannot be in touch with these it is no longer a sustainable and healthy system.

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People's expectations were so high we didn't know if what we were publishing was going the meet those expectations.

我们不知道该网站,能否满足人们的期望,好消息是我们再一次。

麻省理工公开课 - 媒体、教育、市场课程节选

Gas phase single atom. So we don't have to deal with work function or any kind of energies associated with some condensed form of matter.

气相的单原子，所以我们不需要再,处理功函数的问题,以及和凝聚态相关的能量问题。

麻省理工公开课 - 固态化学导论课程节选

So, why don't we set up a company that creates a portfolio like that and investors can buy into that portfolio.

那么，为什么我们不设立一家公司,专门创造这样的投资组合,然后投资者们再将这些投资组合买进呢。

耶鲁公开课 - 金融市场课程节选