用法透視
這個句型用來說明某事很簡單易行，"你所要做的一切只不過是······"。

支持范例
1. All you have to do is to push the button and wait.
你所要做的就是按下這個按鈕然后等待。
2. All you have to do is to sign here.
你只要在這里簽字就行了。
3. They promised that all I have to do is to tell the truth and leave.
他們答應我只要我說出真相就可以走了。

會話記憶
A: Do you know how to play go?
你知道圍棋怎么下嗎？
B: It's easy. All you have to do is to use your pieces to surround the opponent's pieces and then take over all of his territory.
很簡單。你所要做的只是用自己的子去圍對方的子，然后
占下他所有的地盤就行了。
A: But I heard it is very difficult to play.
可我聽說圍棋很難下。
B: It's easier said than done. When you actually play, it can be very frustrating.
說當然比做容易。你真下起來的時候就很傷腦筋了

來源:可可英語 http://www.ccdyzl.cn/kouyu/200911/90116.shtml