The librarian entered a new book in the catalogue.

　　圖書管理員把一本新書編入目錄。

　　Librarians spend a lot of time classifying books.

　　圖書館工作人員花許多時(shí)間將書分類。

　　The students put the books on the library desk, and the librarian checked them in.

　　學(xué)生們把書放在圖書館的柜臺(tái)上，管理員查核后收回。

　　English tense system has long been a focus of linguists and grammarians.

　　英語時(shí)態(tài)系統(tǒng)一直受到語言學(xué)家和語法學(xué)家的廣泛關(guān)注。

　　The computer can alter the Serials Librarian and produce a bindery notice.

　　計(jì)算機(jī)可提醒管理連續(xù)出版物的館員，并制作裝訂通知。