/ʃi:ld; ʃild/
n
1 (a) piece of (usu metal or leather) armour formerly carried on the arm to protect the body when fighting 盾.
(b) (in heraldry) drawing or model of a shield displaying a coat of arms (coat) （纹章中的）盾形纹徽, 盾形徽章. =>illus at coat of arms arms (coat) 见coat of arms (coat)插图.
(c) trophy in the form of a shield 盾形锦标
*win the school boxing shield 赢得学校拳击赛盾形锦标.
2 ~ (against sth) (fig 比喻) person or thing that protects 起保护作用的人或物
*This car polish is an effective shield against rust. 这种汽车上光蜡很有防　作用.
3 (in machinery, etc) plate or screen that protects the operator or the machine; thing used to keep out wind, dust, etc （机器等的）护板, 挡风板, 防尘板
*a shield around the grip of a chainsaw 链锯手柄的护套
* the `heat-shield on a space capsule 宇宙飞船密封舱的隔热屏
* a welder's `eye-shield, ie to stop sparks getting into the eye 电焊工的护目罩.

v [Tn, Tn.pr] ~sb/sth (against/from sb/sth) protect sb/sth from harm; defend sb/sth from criticism, attack, etc 保护或庇护某人[某事物]
*shield one's eyes (from the sun) with one's hand 用手（挡住阳光）保护眼睛
* The police officer shielded the child with her body. 那警察用她的身体保护了小孩.
* You can't shield this criminal from prosecution. 你不能包庇该罪犯而不起诉他.
* I tried to shield him against prying journalists. 我竭力为他挡驾, 拦住那些锲而不舍的记者.