against的区别？
lean on
依赖常见释义
英[liːn ɒn]
美[liːn ɑːn]
词典
依赖;依靠;
例句
As the technique cannot be used to break into newer models, law enforcement authorities will likely have to lean on Apple to help them access the devices involved in other cases.
lean against
倚靠常见释义
英[liːn əˈɡenst]
美[liːn əˈɡenst]
词典
（使）靠在…上;对…有看法;
例句
He felt mortally wounded and had to lean against the wall.
他觉得自己受了致命伤，只好倚靠在墙上
