Suppose you're working on an application that holds two tables: One maps an employee name to a serial number and the other maps the serial number to a salary.
假设您的应用程序有两个表：第一个表将员工姓名映射到一个员工号，另一个将这个员工号映射到一个薪水记录。
This curriculum of one to two day courses forms the backbone of the training initiative, with training road maps for the different roles.
一到两天的培训课程帮助学员了解培训课程的主干，包括针对不同角色的培训路线图。
Google has two goals with social media: One is to slow the momentum of Facebook; the other is to use data from Google + to improve things like search, maps, and ads.
谷歌的社交媒体业务有两个目标：一方面是遏制Facebook的发展势头；另一方面则是利用Google +收集的数据来改善谷歌的搜索、地图服务和广告等业务。
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