the ___(lose)of health is serious,but the ___(lose) of a pencil is not.词形变化。。。。

问题描述:

the ___(lose)of health is serious,but the ___(lose) of a pencil is not.
词形变化。。。。

___输球的健康,严重,但___(输掉)一个铅笔是不真实的。

loss loss