大约70%的妇女都患有经前综合症。

About 70% of women suffer from premenstrual syndrome.

《柯林斯英汉双解大词典》

对经前综合症各种症状的研究并不是一个新生事物。

The study of PMS symptoms is not a new development.

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一年前，这是一块空地，现在已 经成为一所漂亮而新的学校了！

One year ago, this was an empty lot. Now there is a beautiful new school!

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一年前，这是一块空地，现在已 经成为一所漂亮而新的学校了！

One year ago, this was an empty lot. Now there is a beautiful new school!

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