求翻译：由于实习工种很多，通常上午理论教学，下午动手实践（经常见面）。曹国栋同学每天按时上课，认真听讲，记笔记，如果他有什么不懂得地方，他会积极向老师请教。是什么意思？

Since many practice trades usually theory teaching in the morning, afternoon of hands-on (regular meeting). Cao Guodong students to class on time every day, listening intently and taking notes, if he be not knowing how to place, he will actively to the teacher for advice.

Because there are many internship jobs, usually morning and afternoon theoretical teaching hands-) (often encounter. Cao guodong students attend classes on time every day, and seriously listen and jotted down, if he didn't understand what he will actively to consult teachers.

Since many practice trades usually theory teaching in the morning, afternoon of hands-on (regular meeting). Cao Guodong students to class on time every day, listening intently and taking notes, if he be not knowing how to place, he will actively to the teacher for advice.