优质解答
protect.from doing sth.使……免于（保护）
= protect...against doing 防御
prevent … from doing sth.阻止（防御）...做...
【联系】stop sb from doing 阻止...做...
protect.from doing sth.使……免于（保护）
= protect...against doing 防御
prevent … from doing sth.阻止（防御）...做...
【联系】stop sb from doing 阻止...做...