He wore a thick overcoat as a protection against the bitter cold. 他穿著厚实的大衣以抵御严寒。
He told us that we should lay on a second coat of paint for better protection against the weather. 他告诉我们，为更好地防止大气的侵蚀，应该再涂上一层漆。
A deep, wide ditch, usually filled with water, typically surrounding a fortified medieval town, fortress, or castle as a protection against assault. 护城河一条深而宽的、通常有水沟环绕设防的中世纪城镇城堡或堡垒，用以抵抗外来袭击
She put on dark glasses as a protection against the strong light. 她戴上墨镜以防强光的照射。
