protect sth.from sth.和protect sth.against sth.有什么区别?

protect sth.from sth.和protect sth.against sth.有什么区别?
protect sth.from sth.和protect sth.against sth.有什么区别?

protect sth.from sth.和protect sth.against sth.有什么区别?
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.