Certain courses are compulsory, others are optional.

Policing of business courses varies widely.

对商业行为的监管差别很大。

Courses range from cookery to computing.

课程多种多样，从烹调到计算机操作应有尽有。

Many large organizations run courses for their employees.

许多大企业为旗下员工开办课程。

The topic is not taught in degree courses.

学位课程不讲授这个课题。

These courses provide the groundwork of statistical theory.

这些课程介绍的是统计学理论的基础。

Taking long-term courses of certain medicines may increase vulnerability to infection.

长期服用某类药品可能会增加感染的可能性。

He explains that there was an explosion of courses through the 1960s.

他解释说20世纪60年代课程迅速增多。

There is a set menu from £4.00 for two courses with coffee.

有最低消费是4英镑的两道菜加咖啡的套餐。

Main courses are half price from 12.30pm to 2pm.

主菜在中午12点30分到下午两点之间是半价。

We had this understanding that courses were roughly the same weight.

我们已经了解到各门功课差不多一样重要。

If you have any questions, please contactus at once.

要是你有任何的问题, 请马上联系我们.

Clips from the movie will be presented on video.

这部影片的剪辑将制作成录像.

I bought a video for my father.

我为父亲买了一台录像机.

We use video for teaching.

我们用录像进行教学.

Now and again he'd join in when we were playing video games.

我们玩电子游戏时，他偶尔会和我们一起玩。

It looks like high noon for the nation's movie theaters, now we are in the age of the home video.

我们现在正处在家庭录像大行其道的时代，这对国内的电影院来说似乎是个关乎生死存亡的关键时刻。

With poor quality tapes you could also risk dirtying the heads on your video recorder.

使用劣质磁带还有可能会污损你的录像机磁头。

The video explains in simple terms how the new tax works.

录像用简单易懂的语言解释了新税法。

We have viewed the video recording of the incident.

我们看过了该事件的录像。

The video has become an invaluable teaching tool.

录像已经成为非常有用的教学手段。