exist的用法详解

　　exist例句分享

　　Racism exists at all levels of society.

　　种族主义存在于社会各阶层。

　　I would have to learn, little by little, to exist alone.

　　我得慢慢学会独自生活。

　　We cannot exist without air, food and water.

　　我们离开空气、食物和水就不能生存。