prevention

预防，防止un.

• Crime prevention had to be given more prominence.

  犯罪预防得给予更多重视。

• A large, ongoing study conducted by the Centers for Disease Control and Prevention has found 148 chemicals in Americans of all ages.

  美国疾病控制与预防中心正在进行的一项大规模研究发现，美国所有年龄段的人体内都有148种化学物质。

• It may turn out that vitamin E plays a role in prevention but cannot undo serious damage.

  结果可能是，维生素E在预防中会起作用，但不能消除严重的损害。