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n 盾(broad piece of metal，wood，etc carried to protect oneself against weapons)[C]：The sword glanced off the knight's～. 寶劍擦過騎士的盾牌。His～saved him from being killed by his enemy's lance. 他的盾牌擋住了敵人的長矛，得以保住他的性命。

(2)盾形紋徽(emblem or badge shaped like a warrior's shield)[C]：The policeman flashed his～. 警察晃了一下他的徽章?！纪絜mblem，badge;button，star;

(3)盾形徽標(biāo)(object shaped like a shield presented as a prize in a sporting competition，etc)[C]：My son has won the boxing/John Swith Junior Archery S～.我的兒子獲得了拳擊/約翰·史密斯少年射箭比賽的盾形獎牌。

(4)防護物，庇護者(sth or sb giving，or used for protection)[C][N (against)]：The polish is an effective～against rust.這種上光蠟?zāi)苡行У胤乐股P。 The terrorists prevented the police from shooting at them by using some of their prisoners as～s. 恐怖分子用囚犯作人墻擋住警察向他們射來的子彈。〖同〗 protection，protector;

(5)屏，障，擋板(thing like a shield fixed to a machine，etc and used as protection against danger，eg from moving parts of the machine)[C]：a welder's eye-～電焊工的護目罩;a heat/wind～隔熱屏/風(fēng)障;〖同〗guard，cover，screen;

v 保(庇)護(protect from sth harmful，etc)[T+n，T+n+prep (against/from)]：～one's eyes with one's hands 用手蔽護眼睛;She lied to the police to～her friend. 她向警方說謊以包庇自己的朋友。The motor is～ed in a shockproof housing. 發(fā)動機封裝在防震殼中。～sb from radiation/injury/punishment/the sun 使某人免受輻射/傷害/懲罰/日曬;〖同〗protect，guard，shade，cover;〖反〗expose，uncover，endanger，risk