Today is Monday, March 25, outdoor in windy, cold, ask the students to wear more clothes, lest catch cold.

今天是星期一，5月25日，室外在刮风了，有点冷，请同学们多穿点衣服，以免着凉。

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Cover yourself with a blanket lest you should catch a cold.

你要盖毯子以免着凉。

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I stayed in lest I should catch cold.

我怕伤风，所以呆在屋里。

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