進階表達詞彙是we ought to，意思是我們應該做……，例如：
1、We ought to be able to manage it between us.我們齊心協力應該能把這事辦妥。
2、We ought to stock up on film before our trip.我們應該在旅行前備足膠捲。
3、We ought to be leaving now.我們現在該動身了。
We should， 表示"我們應該"，常見的進階表達示例如下:
1、 we ought to do
We ought to observe the regulations.
2、 Be supposed to
He is supposed to have driven more slowly.
3、 Be required to
We are required to Complete the task before Friday.
4、 It is necessary/ important for sb. to do.
It is necessary for us to drive more slowly.
5、 Need to do
We need to finish the task before Friday.
