himself 和by himself 有什么分别,用法有什么不一样,
问题描述：
himself 和by himself 有什么分别,用法有什么不一样,
答
by himself :通过他自己,用于主语是HE（他自己）时.
by him ：通过他,用于主语不是他自己时.
例如
he did it himself.表示他亲自做这件事
he did it by himself.表示他单独一个人做这件事的