He always has to have the last word in any argument.
在任何争论中总是得他最后说了算。
A politics of the future has to engage with new ideas.
未来的政治制度必须同新思想结合。
He has to manage on less than 100 a week.
他就靠每周不到100英镑来维持生活。
The system is inadequate for the tasks it has to perform.
这个系统要完成它的任务还不够完善。
One has to ask oneself what the purpose of the exercise is.
大家必须问一问自己，这个锻炼的'目的是什么。