The sample database is a short book catalog highlighting various gardening books.

样本数据库是一个简短的图书目录，包括多种园艺书籍。

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You could use a List or a Map to implement the relationship; however, a Map offers the advantage that it can provide fast lookup given, say, the book catalog number as the key.

可以用List或Map实现这个关系；但是Map提供的优势是它能提供快速的查询，也就是说用图书目录编号作为键。

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When I open the blue book, the Yale guideline, the Yale catalog, it's got a page, as you all know, where it says what letter grades mean at Yale.

我打开那本蓝皮书，耶鲁指导手册，耶鲁目录，有这么一页，都见过，讲耶鲁每个评分字母表示什么。

youdao

When I open the blue book, the Yale guideline, the Yale catalog, it's got a page, as you all know, where it says what letter grades mean at Yale.

我打开那本蓝皮书，耶鲁指导手册，耶鲁目录，有这么一页，都见过，讲耶鲁每个评分字母表示什么。

耶鲁公开课 - 死亡课程节选

Some scholars have pointed out that in Book II of the Iliad in the section that we call, "The Catalog of Ships," The poet lays out just exactly how many warships came to Troy fromGreece, and just exactly how many came from each town.

有学者指出在《伊利亚特》第二卷,《船舶名录》这一章节中,诗人准确地列出了从特洛伊出发到希腊的,战舰的数量,而每个城镇又各有多少

耶鲁公开课 - 古希腊历史简介课程节选

Seamless Shopping and Reading: Elevating the shopping experience to new digital heights, NOOK for Windows 8 customers can browse over 3 million books, magazines, and newspapers through NOOK's expansive digital content catalog, learn more about the book (including details and reviews) right from within the app, and tap to purchase and begin reading in seconds.

ENGADGET: Nook app comes to Windows 8 with clean Paper-like design

"There are always nit-pickers, " says Owen W. Linzmayer, publisher in San Francisco of BanknoteNews.com and editor of the Banknote Book, a catalog for collectors of world notes.

WSJ: Canada's New Banknotes Strike Some as Loonie

Your book may have been purchased recently, but if books in the rest of the catalog have recently been purchased more often than yours, your rank may remain constant or might drop.

FORBES: The Amazon Book Jungle