你应该要求孩子们饭前要洗手。

You should ask the children to wash their hands before dinner.

youdao

吃饭前要先洗手。

Wash your hands before the meal.

youdao

母亲：而且吃饭前要记得洗手。

Mother: and remember to wash your hands before meals.

youdao

还要注意个人卫生，我们饭前便后要洗手。

Also pay attention to personal hygiene, we wash hands before the rice then empress.

youdao

还要注意个人卫生，我们饭前便后要洗手。

Also pay attention to personal hygiene, we wash hands before the rice then empress.

youdao