他15岁时就比他那些居住在乡村的表兄们懂人情世故了。

At 15, he was more worldly than his older cousins who lived in the country.

《牛津词典》

在他们之中，年龄最大的是21岁。他们是一个大家庭的表兄妹，其中8个人来自农村。

Among them, the oldest is 21 years old. They are all cousins in a big family and eight of them are from rural areas.

youdao

我的表兄弟是15岁。

My cousins are 15 years old.

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