n.制轮木，煤面防护柱，制轮杆
"It's only a sprain," Paula said brusquely.
“只是扭伤了筋，”葆拉简短生硬地说。
That's a bad sprain.
那是严重的扭伤.
He got a foot sprain in his ankle.
他脚踝受了严重的扭伤.
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