My calves were tight after the long hike.
走了很久之后,我的小腿肚发紧。
He got a sudden cramp in his calf during the swim.
游泳时他的小腿肚突然抽筋了。
calf 的复数是 calves,不是 calfs。小腿肚抽筋叫 a calf cramp。
