Librarians spend a lot of time classifying books.图书馆工作人员花许多时间将书分类。The students and the librarians query for books beyond the current list.同学和图书管理员询问现有书目以外的书籍.The teachers and librarians of ancient Alexandria did it.古代亚历山...
This paper summaries the function and benefits of Yellow River dyke strengthening by desilting.概述黄河放淤固堤的作用及效益评价.The computer prepares summaries of all the calls it receives.计算机能为它接到的全部电话作摘要.Recent progress on asymmetric ...