shield什么意思及同义词

shield 英 [ʃiːld] 　 　 美 [ʃiːld] 　 　 n. 盾；盾状物；防卫物 vt. 保护；庇护 用作名词 (n.) The shield protected him from the blows of his enemy. 这盾牌保护他免受敌人的打击。 There is a shield in the badge of PLA men. ***的徽章上有着盾状物。 He must pile more sand on top as a shield. 他必须在顶上多加些沙土作为防御物。 用作及物动词 (vt.) Motorcyclists must wear helmets to shield them from injury. 摩托车手必须戴头盔保护自己免受伤害。 She held her hand above her eyes to shield them from the sun. 她举起手遮挡阳光以保护眼睛。