To hurt a joint — usually an ankle, wrist or knee — by twisting it suddenly, so that the tough bands holding the bones together get stretched or torn. Nothing is broken, but it swells, turns colour and hurts to use. It is also a noun: 'a bad sprain'.

To hurt a joint弄傷一個關節 — usually an ankle, wrist or knee ——通常是腳踝、手腕或膝蓋—— by twisting it suddenly因為突然扭到, so that the tough bands holding the bones together get stretched or torn.，導致固定骨頭的那些強韌組織被拉伸或撕裂。 Nothing is broken沒有骨折, but it swells, turns colour and hurts to use.，但會腫起來、變色，而且動起來會痛。 It is also a noun這個字也可以當名詞 : 'a bad sprain'.：'a bad sprain'一次嚴重的扭傷。

The important thing is which words go with it. You sprain a JOINT (ankle, wrist, knee, thumb), you STRAIN a muscle (back, hamstring), and you BREAK a bone. English keeps these three apart, and native speakers hear the difference immediately.

The important thing is which words go with it.重點是它會搭配哪些字一起用。 You sprain a JOINT (ankle, wrist, knee, thumb)你會sprain一個關節，就是腳踝、手腕、膝蓋、拇指這些, you STRAIN a muscle (back, hamstring)，會strain一條肌肉，就是背部、大腿後側這些, and you BREAK a bone.，而骨頭則是break骨折。 English keeps these three apart英文把這三個字分得很清楚, and native speakers hear the difference immediately.，母語人士一聽就能分辨差別。

The usual pattern is 'sprain your ankle' — English uses the possessive here, not 'the'. In practice people also say 'twist my ankle' for a mild one, and doctors write 'sprained ankle' on the note.

The usual pattern is 'sprain your ankle'常見的說法是'sprain your ankle' — English uses the possessive here, not 'the'.——英文這裡用所有格，不是用'the'。 In practice people also say 'twist my ankle' for a mild one實際上輕微一點的，人們也會說'twist my ankle', and doctors write 'sprained ankle' on the note.，醫生在病歷上則會寫'sprained ankle'。