法定年龄

例句：

1. 1. The law requires that all drivers must be at least 18 years old.
   法律规定所有驾驶员必须至少18岁。
2. 2. The company's policy states that employees must be over 18 years old to work.
   公司的政策规定员工必须年满18岁才能工作。
3. 3. The child was born on January 1st, which is the legal age for children in manycountries.
   这个孩子出生在1月1日，这是许多国家儿童的法定年龄。