I do this by using a source code management system by checking out a working copy from the mainline.

我通过代码管理系统在代码库的主线(mainline)上拉下(checkout)一份工作代码拷贝。

youdao

I do this by using a source code management system by checking out a working copy from the mainline.

我通过代码管理系统在代码库的主线(mainline)上拉下(checkout)一份工作代码拷贝。

youdao