你会花点一般的时间来说服他们把任务完成，因此也就浪费了宝贵的学习时间。

You'll spend half your study time prodding them to get the job done, and will waste precious study minutes.

youdao

在你做练习的同时，你需要清楚的了解做错的原因，否则你就是在浪费宝贵的学习时间。

If you do a practice test, you must work out why you made each and every mistake; otherwise you are missing out on valuable 'learning' time.

youdao

会占去我们很多宝贵的 学习时间吗？

will take up too much of our precious time for study?

youdao