I've twisted my ankle. 我扭伤了脚踝。
A: What's up? Why are you limping?
A: 怎么了？你为什么一瘸一拐的？
B: I twisted my ankle. It really hurts.
B: 我扭伤了脚踝。很疼。
A: How did you do that?
A: 怎么搞的？
B: It was nothing serious. I just twisted it when I was walking.
B: 没什么大事。是我走路的时候扭伤的。
A: It looks swollen. You shouldn't walk on it. You should rest.
A: 看起来肿了。你不应该再用伤脚走路了。你应该休息。
B: I know. I'm going to put some ice on it.
B: 我知道。我要在上面敷些冰。