Achilles tendon's enthesiopathy的用法和样例：
- His Achilles' heel was his pride.
- Achilles was vulnerable only in his heel.
- He would have made a good pilot but his drinking habit was his Achilles’ heel.
- I think Frank's vanity is his Achilles' heel.
- Achilles Can Never Overtake the Tortoise?
- It' s* your* crew, not mine," said Achilles.