Y: Hey, Patrick, 你怎么一瘸一拐的?

P: I'm limping because my Achilles tendon is killing me! OW!

Y: Poor Patrick.

P: Uh, Yang Chen, do you know what an Achilles tendon is?

Y: Well, not really.

P: Achilles tendon is in the lower back part of your leg. It connects your foot to the muscle.

Y: Oh, 原来你和刘翔一样，得了跟腱炎?

P: Yeah, that's right. He is a little bit faster than me.

Y: A little bit faster?

P: Just a little. He had a problem with his Achilles tendon, too.

Y: 那你是怎么弄伤了你的Achilles tendon?

P: Well, I pulled it running during my warm ups for the 110 meter hurdles.

Y: Aw, that's too bad. (Sarcastically.)

P: Thanks for the sympathy, Yang Chen.

Y: 跟腱为什么叫 "Achilles tendon" 呢?

P: Achilles was an ancient Greek hero.

Y: 阿基里斯是希腊神话里的勇士。

P: He was dunked in a sacred river by his mother, and his mother was holding him by his ankle.

Y: So?

P: So he became invulnerable everywhere the water touched him, except for his heel.

Y: 因为他妈妈抓着他的脚后跟，没沾到神水，就成了他的致命弱点。

P: So when someone has a fatal flaw it is referred to as their "Achilles heel". Because Achilles was killed when an arrow struck him in his heel.

Y: What's your "Achilles heel," Patrick?

P: Oh, I may have a problem with my Achilles tendon, but I don't have an Achilles heel.

Y: Why?

P: I'm perfect!