… have only to do …

结构︰

have only＋to-不定词…

说明︰

此句型意为“只需…就够了”。相当于“All one has to do …”或“What one has to do …”。

You have only to sit there and watch what I am doing.
你只要坐在这里，看着我做就行了。
don’t worry; you have only to sing a song to please her.
不用担心，你只需唱首歌让她高兴就行了。
You have only to go.
你只要去即可。
You have only to ask and hell tell you.
你只要问他，他就会告诉你。