課本中不會教你的[P]562　protect from和protect against

562　protect from和protect against

◎ 這兩個短語都是正確用法，protect against后接較大的事情，如戰(zhàn)爭、災害、重稅、威脅等；protect from后接較小的事情，如frost，harm，catching cold等。

He wore glasses to protect his eyes from the sun. 他戴著眼鏡，免受陽光的刺激。

He protected himself against the danger. 他保護自己，免遭危險。

These thick clothes will protect you from the cold. 這些厚衣服能幫你御寒。

They protected the city against enemy's attack. 他們保衛(wèi)這座城市，免遭敵人的攻擊。