make an effort 后面接什么

　　I've no use for people who don't make an effort.

　　我厌恶那些不努力的人。

　　Everybody should make an effort to reduce pollution.

　　每个人都应为减少污染尽一份力。

　　It is incumbent upon all of us to make an extra effort.

　　我们所有人都必须加倍努力。