Psychologists tell us boundaries are healthy, that it's important to reveal yourself to friends, family and lovers in stages, at appropriate times.

心理学家告诉我们，界限是有益于健康的，在适当的时候，分阶段向朋友、家人和爱人展示自己是很重要的。

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Psychologists tell us boundaries are healthy, and that it's important to reveal yourself to friends, family and lovers in stages, at appropriate times.

心理学家告诉我们，（人与人之间的）界限是有益身心的，但在适当的时候，分阶段向朋友、家人和爱人袒露心声很重要。

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Therefore, 'let the cat out of the bag' must mean something like 'reveal a secret' or 'tell a secret'.

因此，“let the cat out of the bag”一定是“揭露秘密”或“泄露秘密”之类的意思。

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This is not the time to consume a large amount of alcohol, discuss strong political or religious opinions, tell unflattering jokes, or reveal something inappropriately personal.

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