腕的用法和样例：
例句
-
他从楼梯跌下，摔伤了手腕。
He fell downstairs and broke his wrist. -
他一抖腕子就把饼翻过来了。
He turned the pancake over with a strong flick of his wrist. -
她的手腕上戴着一只镯子。
She wears a ring round her wrist. -
他的手腕割伤得很厉害，血阵阵涌出。
He cut his wrist so badly that jets of blood spurted out.
