It is difficult for numeric people to keep track of the change in numbers even when the total is very small.

即使数据总数很小，数据工作者也很难追踪数字的变化。

youdao

It's hard to keep track of the children's comings and goings.

这些孩子来来往往，很难跟得上他们的行踪。

《牛津词典》

With eleven thousand employees, it's very difficult to keep track of them all.

有11000名员工，很难了解他们所有人的动向。

《柯林斯英汉双解大词典》

"For example in Rwanda, where cell phone-based technologies are being used to keep track of dispensation of drugs to patients with H.I.V.

VOA: special.2010.05.03

So there's all sorts of things that we have to obviously monitor, to keep track of that can influence our industry.

所以我们要观察的,显然有很多，才能跟得上信息技术行业的发展。

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选

I've got some internal variables I have to store, what kinds of things do I have to keep track of?

计算的时候需要占用多少内存,我需要存储一些内部变量,我需要记录哪些东西呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

The company uses thousands of index cards to keep track of customers' foot measurements.

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It is ineffective to try to keep track of what every employee is doing.

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It helps to keep track of your income and your expenses as you go along.

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