他们遵守那条约束他们所有人的不成文规定—不许说话。

They obey the one unwritten rule that binds them all–no talking.

《柯林斯英汉双解大词典》

他们违反了这次会议的不成文规定。

They sinned against the unwritten rules of this meeting.

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他们违反了学校的不成文规定。

They sinned against the unwritten rules of the school.

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但是在这方面的大量心理研究表面，有条不成文规定，如果你在经受艰难之后变得要强一些，那可能不是因为那些艰难的时光。

But the bulk of psychological research on the topic shows that, as a rule, if you are stronger after hardship, it is probably despite, not because of the hardship.

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但是在这方面的大量心理研究表面，有条不成文规定，如果你在经受艰难之后变得要强一些，那可能不是因为那些艰难的时光。

But the bulk of psychological research on the topic shows that, as a rule, if you are stronger after hardship, it is probably despite, not because of the hardship.

youdao