Do you keep many books and papers and memorabilia?你是不是收藏了大量的书籍、报纸和纪念品？a swap meet for collectors of Star Trek memorabilia《星际迷航》纪念品收藏者交流会The new - opened museum exhibits memorabilia in his long career.(新落成的博物馆展出他长久生涯的重要物品...
This paper introduces mechanism, research methods and main results about microbubble dray reduction.该文介绍了微气泡降阻机理 、 研究方法和重要结论.A dray is a type of horse - drawn vehicle.雪橇是一种马拉的交通工具.She stood doggedly in checkout lines; sh...