fixed claw

例句：

1. 1. The animal had a fixed claw on its front paw.
   这只动物前爪上有一个固定的爪子。
2. 2.The carpenter used a fixed claw to hold the wooden planks together.
   木匠用一个固定的爪子把木板连在一起。
3. 3.The bird's fixed claw was strong enough to hold onto the branch.
   那只鸟的固定爪子足够强壮，能够抓住树枝。