As with learning anything else, one needs to learn professional knowledge not only from books but also from practice.

如同学习别的东西一样，一个人既要从书本上，又要从实践中学习专业知识。

youdao

The installation of video cameras, tracking devices and other monitoring tools can also help deter workers from pilfering, but employers should first review local laws on the practice.

摄像头、跟踪装置和其他监视工具的安装可以帮助制止员工的盗窃行为，但雇主们在实践中应首先回顾当地法律。

youdao

A man of perfect practice also resorts to arms but he is different from the politician.

修行完备的人也用兵打仗。可是他与一般谋略家、野心家不同。

youdao

But he's also had more practice from the rough, averaging 3.3 shots per round from the tall stuff compared with 2.4 swings per round from there last season.

WSJ: Tiger Woods Should Credit His Return to No. 1 on Improved Putt

Federally funded scientists can also derive stem cells, after informed consent, from aborted fetuses, but this practice is not without controversy.

CNN: NIH publishes draft guidelines for stem cell research