HC, the Handler Compiler I introduce in this column, should simplify writing that content-tracking code.

我在本专栏中介绍的处理程序编译器HC应该可以简化内容跟踪代码的编写。

youdao

The state tracking code is highly repetitive, error prone and, generally speaking, a chore to write and maintain.

状态跟踪代码的重复性很高，而且很容易出错，一般而言，编写和维护该部分是很繁琐的。

youdao

The HC compiler will preprocess Listing 2 and, using the @xpath comments, generate the state-tracking code automatically.

HC 编译器将对清单 2 进行预处理，并使用 @xpath 注释自动生成状态跟踪代码。

youdao

All they had to do was append a tracking code to their emails.

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Best of all, you don't have to worry about entering a product tracking code every time you download and install a copy on a computer.

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In that instance, Google used special computer code to install tracking files known as cookies on some people's computers even if the device was set to block such tracking.

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