对你和你的狗来说，训练的过程应该是有趣和有意义的。

Training should be fun and rewarding for you and your dog.

youdao

这是一个训练的过程：既是诅咒，也是改变的机会。

It is a learned process, which is both a curse and an opportunity for change.

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许多人认为智能机器必然是正确和客观的，但机器是通过反复测试和评分过程来训练的。

Many people believe smart machines are necessarily correct and objective, but machines are trained through a repeated testing and scoring process.

youdao

These won't be graded, you don't have to turn them in, it's just to give you some extra practice if you want while you're studying for the exam.

这些题目不会记分，你们也不需要交上来，只是如果你需要的话，这可以让你,在准备考试的过程中得到更多的训练。

麻省理工公开课 - 化学原理课程节选