shield /ʃi:ld/ I. n. ［c］ 防护物，盾状物：a spear and a shield 矛与盾 ‖II. vt. 保护，防护：Sunglasses shield our eyes from the sun. 太阳镜能保护我们的眼睛。Parents should shield their children from danger. 父母亲应保护子女免受危险。