短語詞組短語bump up against difficulties 碰到睏難bump up against 碰到bump against the door 撞在門上bump against a wall 撞到牆上bump against a tree 突然撞在樹上Bump against a hammer 撞鎚C bump my head against 把頭撞到run bump against the wall 突然撞到牆上bump against ten numbers multiplication 撞十?dāng)?shù)乘法 返回 bump against