/ˈhæv tə; US ˈhæf tə;strong form and before vowels ˈhæv tu:;ˈhæf tu: ||; ˈhæf tə; ˈhæf tu/(also have got to) modal verb used for saying that sb must do sth or that sth must happen 必须；不得不: I usually have to work on Saturday mornings. 星期六早上我通常要上班。Do you have to have a visa to go to America? 到美国去要不要签证？She's got to go to the bank this afternoon. 今天下午她得去银行。We don't have to (= it's not necessary to) go to the party if you don't want to. 你不想去酒会的话我们就不必去了。We had to do lots of boring exercises. 我们不得不做很多很多乏味的练习。 For more information about modal verbs, look at the Quick Grammar Reference section at the back of this dictionary. 有关情态动词的详细用法，参看本词典末“语法便览”部份。