筋的用法和样例：
例句
-
她做的工作把她累得筋疲力尽。
She's knocking herself out with all that work. -
我们的新汽车很让人伤脑筋。
We're having trouble with our new car. -
混凝土墙是用钢筋加固的。
The concrete walls are reinforced with steel rods. -
抽筋肌肉习惯性或过分活动引起的局部暂时性麻痹
A temporary partial paralysis of habitually or excessively used muscles. -
那运动员的腿抽筋了。
The muscles in the athlete's leg went into spasm.
