emigration from Europe to America从欧洲移居到美洲Emigration was still theoretically a matter of choice.从理论上讲，移民仍是个个人选择的问题。Increase in population made emigration necessary.人口的增加使向外移民成为必要。Due to poor family living Rishengchang Vot...
to supervise building work监理建筑工程Tomorrow he will supervise all the pupils taking the English examination.明天全体学生考英语,他将担任监考.We must supervise and speed up the fulfilment of assigned tasks.已经布置了的工作,应当认真督促检查....