A general rule of thumb with meteor showers is that you are never watching remnants from a comet's most recent orbit.

关于流星雨的首要经验就是，你看到的流星绝对不是彗星最近一次略过时留下的残骸。

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In extra recent nowadays, this fact has been expressed as: April showers bring May flowers.

近来这一真理被阐述为：四月的雨带来五月的花。

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In more recent times, this truth has been expressed as: April showers bring May flowers.

近来这一真理被阐述为：四月的雨带来五月的花。

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But there can be no doubt that some of the more recent milestones - baby showers, 16th birthdays and proms - have been inspired by America.

BBC: Why has everything become a costly milestone event?