Propiophenone is a important intermediate in organic synthesis. It has been prepared in some methods. One of them is Friedel-Crafts reaction.

苯丙酮是一重要的有机合成中间体，已有多种方法合成，其中之一是付瑞德尔—克拉夫慈反应。

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Some complain about the teachers if their kids get hurt in schools; some even challenge the schools' teaching methods and management.

如果孩子在学校受伤，一些人就抱怨老师；有些甚至质疑学校的教学方法和管理。

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These methods have revealed some unexpectedly immense formations in the deepest parts of the mantle; the largest of these is a buoyant mass of hot rock directly below Africa's southern tip.

这些方法在地幔最深处揭示了一些意想不到的巨大构造；其中最大的一块是在非洲南端正下方的一块热岩。

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So let's look at what some of the traditional methods for classes are in Python.

很奇怪的有下划线的东西,因此让我们来看看Python中,一些传统的方法吧。

麻省理工公开课 - 计算机科学及编程导论课程节选

Since 2006, the monastery has been making award-winning wines, some in qvevris, some using modern methods.

BBC: Discovering wine in Georgia

In all three cases, explained Dr Stysley, the effect is a small one - but it could in some instances outperform existing methods of sample gathering.

BBC: Nasa examines 'tractor beams' for sample gathering

If a student is suicidal, he is going to do everything in his power (even beyond his job description) to get them the help they need and get them acclimated back in school using some unconventional methods like attendance at football games to accomplish his goal.

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