1.to have all the information that you need about something
1.It also validates the various internal structures that are used to keep track of these pages and the relationships between them.
它还可验证各种内部结构，这些结构可用于跟踪这些页以及它们之间的关系。
2.Her mother used to keep track of every penny she spent.
她母亲从前把自己所花的每一分钱都记下来。
3.' My biggest problem was trying to keep track of all the different things going on -- work , sports, school and jobs, ' Mr. McCormick says .
凯斯说，我最大的问题是同时应付好各种事情——工作、体育、学校和兼职等等。
4.I don't keep track of how much money I spend on books.
我没有记录买书我到底花了多少钱。
5.You know your bottom line, but you don't keep track of every transaction or plan every action or expense.
你知道自己的底线在哪里，不过你不会跟踪每一笔交易，或对每一个行动和每一笔支出进行计划。
6.When you get this much snow, someone's got to keep track of it. -We'll take several different ones, average them together.
当下这么大雪的时候，有人必须跟踪纪录它。-我们会取不同的下雪量，然后取它们的平均数。
7.Keep track of how much time you spend online, and what you're doing with it, Levy suggests.
记录下你花了多久时间上网，你上网在干些什么。
8.My doctor told me to keep track of everything I ate for two weeks, then bring the list to her so we could work out a diet.
我的医生要我连续两个礼拜记录所吃下的每样东西，然后把记录表拿给她看，这样我们才能研拟出一份我的节食计划。
9.We made a special ball, with a bell in it, so the kids can keep track of where the ball is and what it's doing by listening for it.
我们做了一个特殊的足球，里面带一个铃铛。这样通过铃铛声音，孩子们可以跟着球跑并能判断出赛场情况。
10.Now that you know your fitness level, keep track of your progress.
现在你已经知道了你的健康水平，保持跟踪你的健身进度。