v.惊退，畏缩( shy的过去式和过去分词 )
He used his left hand as a shield against the reflecting sunlight.
他用左手挡住反射过来的阳光。
The gunman used the hostages as a human shield .
持枪歹徒用人质作人体盾牌。
The knight carried a shield with a cross painted thereupon.
骑士拿着绘着十字的盾牌.