He makes a living ____ (靠写诗歌)

问题描述:

He makes a living ____ (靠写诗歌)

by writing poems
by 是通过什么手段做事情
比如,通过坐飞机by air 坐公交by bus

(by)writing poems

by writing poems

By writing poems O(∩_∩)O~

填by writing poems
He makes a living by writing poems.
翻译:
他是靠写诗歌为生.