When the airlines decided to enforce these rules without giving anyone a heads-up, it created a lot of problems for travellers.

航空公司在决定执行这些规定时没有事先通知任何人，这给旅客带来了很多麻烦。

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Children not only feel they should obey these rules themselves, but also that they should make others in the group do the same.

孩子们不仅要觉得自己要遵守这些规则，而且他们也应该让集体中的其他人同样遵守。

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If these rules are followed, the National Parks will be well kept and continue to give pleasure to many people for a very long time.

如果人们遵守这些规则，国家公园将得到良好的保护，并在很长一段时间内继续给许多人带来乐趣。

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And we have a responsibility to write and enforce these rules to protect consumers of financial products,taxpayers, and our economy as a whole."

VOA: special.2009.09.18

By the 1970s, these rules were rarely enforced and easily violated, or so I was told.

到了七十年代，这种规定已经名存实亡了，至少我听说是这样。

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it's like not so much about following these rules, these guidelines of what you're supposed to do.

这不是循规蹈矩，遵循你该做什么的指导。

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Keep in mind, though, that credit card issuers can start enforcing these rules at any time.

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And these rules are in addition to the numerous reports and studies that Act also commissioned.

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These rules are boundaries of government, within which our public servants are supposed to solve problems.

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