Only by testing can you be confident that changes you make to one part of a system will not break another part somewhere else.

只有通过测试，您才能确信您对于系统中的某一部分所做的改变不会中断其他地方的另外一部分。

youdao

Only by testing can you be confident that changes you make to one part of a system will not break another part somewhere else.

只有通过测试，您才能确信您对于系统中的某一部分所做的改变不会中断其他地方的另外一部分。

youdao