名詞 shielding:

1. the act of shielding from harm
2. a shield of lead or concrete intended as a barrier to radiation emitted in nuclear decay
3. shield consisting of an arrangement of metal mesh or plates designed to protect electronic equipment from ambient electromagnetic interference

動詞 shield:

1. protect, hide, or conceal from danger or harm
   同義詞：shield, screen
2. hold back a thought or feeling about
   同義詞：harbor, harbour, shield

1. This car polish is an effective shield against rust.
   這種汽車上光蠟很有防　作用。
2. Soldiers in ancient time usually fight with pikes and shields.
   古代的戰(zhàn)士們通常用長矛和盾牌戰(zhàn)斗。
3. Motorcyclists must wear helmets to shield them from injury.
   摩托車手必須戴頭盔保護自己免受傷害。
4. The shield protected him from the blows of his enemy.
   這盾牌保護他免受敵人的打擊。