stop sb from doing sth和protect sb from

protect sb from 保护某人不受…也可以直接加sth

protect sb against：protect sb from

这两个短语动词同义，都作“防御”讲，只是 protect sbagainst多半对付较大的事件，而 protect sb from则多半对付较小的事件。

例如：Our PLA men protect us against invasion．我们的解放军战士保卫我们，抵御侵略。

Miss Nash has worn a fur coat to protect her from the cold．纳希小姐已穿上毛皮大衣来御寒。