动 （防备） provide against，defend against，guard against；名 defence，dam，dyke，embankment ；

[例句] 选择防晒护唇膏来增强保护。 For added protection choose a lipstick with a sun screen.

[例句] 多亏一块1/4英寸厚的防弹钢板，他才捡了条命。 His life was saved by a quarter-inch-thick bullet-proof steel screen.