而引发衰老突发的一个诱因是一段时间的精神紧张——最近的离婚、生病，或者亲人去世、工作麻烦等。

One trigger for an ageing spurt is a period of stress - recent divorce, illness, and bereavement or work problems.

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大多数人在不得不来段演说时，演说前会变得精神紧张。

Most people get nervous before they have to give a speech.

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大多数人在不得不来段演说时，演说前会变得精神紧张。

Most people get nervous before they have to give a speech.

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