重庆周林频谱仪
1. must2. to have to不同的地方有不同的用法:1. 必须得想个办法。 Something must be done about it.2. 这个剧目播出前必须经过数次剪辑。 Before this play is broadcast several cuts must be made.3. 孩子用的家具必须经得起拳打脚踢。 Children's furniture must withstand kicks and blows.4. 我必须找人把收音机修理好。 I must get the radio fixed.5. 去伦敦之前,我必须好好温习一下英文。 I must brush up my English before I go to London.6. 你从图书馆借的书上的戳记表明,这本书必须明天归还。 The stamp in your library book shows it must be returned tomorrow.7. 在英国,车辆必须靠左行驶。 In England traffic must keep to the left.8. 我们明天必须离开,真是遗憾。 It is a pity that we shall have to leave tomorrow.