看看这句英文我写的对不对?Relaxing is necessary if you feel tired.
问题描述：
看看这句英文我写的对不对?
Relaxing is necessary if you feel tired.
答
对了
答
改成 It is necessary to relax when you feel tired.
答
Relaxation is necessary when you feel tired.Relaxation是名词,是放松,休息的意思.应把if 该为when,译为当累的时候.
答
对是对，但感觉很别扭。
非谓语动词即动名词在这里做从句的主语，有点...