用激光照射氢原子或反氢原子，观察何种波长的光线被吸收了，可以通过这种办法来详细地比较这两种原子的能级。

By shining laser light onto hydrogen or antihydrogen and observing which wavelengths are absorbed, the energy levels of the two can be compared in detail.

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用反病毒和反恶意程序软件扫描你的电脑。

Scan Your PC with Anti-virus and Anti-malware software.

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用接下来的四年时间为以下这8种职业做准备，你将会发现找工作易如反掌。

Spend the next four years preparing for one of the following professions, and your job search could be a breeze.

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So just as we had to escape things with backslashes in an awkward way, same deal with percent in this context.

所以就像我们采用笨拙的方式来用反斜杠来避免一些东西,在这个背景下对百分号做相同的处理。

哈佛公开课 - 计算机科学课程节选

All right, so the bonding order, you're correct, should be 2, if we subtract the number of bonding minus anti-bonding electrons and take that in 1/2.

好，你们是对的，键序为，如果我们用成键数,减去反键数除以2。

麻省理工公开课 - 化学原理课程节选

since he is born with weapons for the use of wisdom and virtue, he may use them for the opposite ends.

人生下来就有可以运用智慧和美德的利器,但人也可以用这利器反其道行之

耶鲁公开课 - 古希腊历史简介课程节选