客户在开始交易前，应了解适用的规则和伴随的风险。

Before you undertake such transactions, you should familiarize yourself with applicable rules and attendant risks.

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对于一种情况适用的规则，对于另一种情况不一定适用。

The rules pertaining to one set of circumstances do not necessarily to another.

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现行跨国消费者合同的法律适用的规则，以罗马公约、美国为代表的规定比较灵活。

As far as the rules of applying the law to current transnational consumer contract are concerned, the provisions in Rome Convention and in America are flexible.

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People to this day are looking for a theory of everything. And there is something very appealing about the notion that the rules that govern the motion of heavenly bodies might be applicable down at atomic dimensions.

现在人们总想寻求一些,可以阐明一切的理论,而这里正好有一些,可以吸引这种想法的东西,即支配天体运动的规则,可能对原子的尺寸也是适用的。

麻省理工公开课 - 固态化学导论课程节选

You have these broad things, like if you just got the population to eat less junk food and more fruits and vegetables, well you might be 80% of the goal line or 90% of the goal line, so some broad rules pretty much apply.

如果能遵守这些宽泛的规则,比如,如果能让人们少吃垃圾食品,多吃蔬菜和水果,那么将可达到目标的百分之八九十,因此某些宽泛的规则是广泛适用的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选