subunguis

例句：

1. 1.The dog's subunguis was protruding from its mouth.
   狗的刺从嘴里突出来。
2. 2. The spider's subunguis is a deadly weapon.
   蜘蛛的刺是致命的武器。
3. 3.The soldier's subunguis was the only thing that saved him.
   士兵的刺是唯一救他的东西。