must
1.I understand, but if we must pay to make the goods, and then must wait four months for you to pay, we will have money trouble too.
我了解.可以要我们先花钱生产产品.又得等到四个月才能拿到货款.那我们也会有财务困难.
2.I think her story must be so moving and she must be an outstanding figure of history.
我想她的故事一定很动人，她也一定是个历史上的杰出人物。
