The dog rubbed its back ____ the wall.

问题描述:

The dog rubbed its back ____ the wall.

against,这句话的意思是这条狗的背在墙上蹭来蹭去.against有紧靠;倚;碰撞的意思.牛津字典上的原句是the cat rubbed itself against my legs,猫在我腿上蹭来蹭去.