You will do this for simplicity in this exercise, but it is often a best practice for a class not to be aware of who is intercepting it.

为了简便起见，在此练习中可以这样做，但是对于类来说，最佳实践是不要知道谁在拦截它。

youdao

In theory, losing weight is quite simple — just eat less and exercise more — but of course, putting it into practice can be complicated.

理论上讲减肥并非难事——就是少食多动——但是别忘了，要付出实际行动才行。

youdao

In fact, the process of providing a context in the first place can be a very useful exercise in terms of identifying the value of a particular practice or set of practices.

实际上，首先提供上下文是一种非常有用的练习，对识别某个或某组特定实践的价值非常有帮助。

youdao

Now, the purpose of this exercise is to give you a little bit of practice in figuring out what these quantities are.

就有这样的结论,这个练习的作用时让你们理解,这些物理量是什么。

麻省理工公开课 - 热力学与动力学课程节选

And by the exercise of entire sovereignty in protecting the public teaching of it, convert this truth of speculation " into the utility of practice."

藉由在整个统治区域,保护传授者的实践，将这对真理的思索,转换为实用与实践“

耶鲁公开课 - 政治哲学导论课程节选

In the ruling, Weeks found that not only did prosecutors across the state intentionally use the race of a potential juror as a significant factor in decisions to exercise preemptory challenges -- the practice of striking somebody from a jury without explanation, but that the practice occurred in Robinson's case.

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In that case the practice of letting a jury decide whether a warning is complete is an exercise in futility, an argument about a hypothetical.

FORBES: Three Thousand Words Of Warnings Not Enough

In theory, these days are the opportunity for the Commons to exercise its core responsibility to monitor the use of public money - in practice, they're debates on issues raised by select committee reports.

BBC: Week ahead