have to和have got to 都表示一种客观的需要,意思是“不得不”.如: I have to attend an important meeting this afternoon. 今天下午我不得不参加一个重要的会议. Mother is out, so I have to look after the shop. 妈妈不在家,因此我不得不照看商店. We have got to solve this problem before tomorrow.我们必须在明天之前解决这个问题. (have to 与have got to 常可以互换,两者没有语义上的区别)