self-shield

例句：

1. 1. The soldier used hisself-shield to protect himselffrom the bullets.
   士兵用他的自我防护来保护自己免受子弹的伤害。
2. 2. She decidedto take self-shield measuresto protect her family from harm.
   她决定采取自我防护措施来保护她的家庭成员免受伤害。
3. 3. He was self-shielded by a thick layer of dust whenhe stepped into the room.
   当他走进房间时，他被一层厚厚的灰尘所保护。