例句：
We've only to advertize to get a mob of people after it.
我們只要登一個廣告出去，就會引來一大堆人要它。
Should I call him and apologize?
我是不是應該打電話向他道歉？
I felt (that) I had to apologize.
我以為我得道歉。
O.K. I made a boo-boo. I apologize.
好吧。我犯了一個低級錯誤。我道歉。
Why should I apologize?
我為什么要道歉？