He always has to have the last word in any argument.

　　在任何爭論中總是得他最后說了算。

　　A politics of the future has to engage with new ideas.

　　未來的政治制度必須同新思想結(jié)合。

　　He has to manage on less than  100 a week.

　　他就靠每周不到100英鎊來維持生活。

　　The system is inadequate for the tasks it has to perform.

　　這個(gè)系統(tǒng)要完成它的任務(wù)還不夠完善。

　　One has to ask oneself what the purpose of the exercise is.

　　大家必須問一問自己，這個(gè)鍛煉的目的是什么。