Teachers often chaperon their classes on field trips.

在野外郊游时老师常看护着上学生。

There are ten English classes listed in the timetable.

课表上列有10节英语课。

We may enrol another two classes of 20 students each.

我们可以再招收两个, 每20个学生。

Many schools use small classes as their trump card in marketing campaigns.

很多学校在做宣传活动时都把小授课当成他们王牌。

In this book we have tried to typify the main classes of verbs.

在，我们力图以明显方式把动词划几大类。

The new grouping of classes means larger numbers in each class.

这次重新编，意味着每个数增多了。

The teacher scowled at his noisy class.

老师对他那喧闹课堂板着脸 。

The lower classes are always with us.

我们总是和下层社会民在一起。

We have a dictation every English class.

每次上英语课我们都进行听写测验。

Officers are entitled to travel first class.

官员有权坐头等舱。

New tasks now confronted the working class.

新任务摆在工阶级面前。

The teacher set the class a comprehension test.

老师对全同学进行了一次理解力测验。

She paces the whole class in English study.

她在学习英语方面为全树立榜样。

Please distribute the examination papers round the class.

请把考卷发给全同学。

We use a globe in our geography class.

我们在地理课上使用地球仪。

The arrival of the teacher silenced the class.

教师到来使全安静下来。

A recorder is often used in our English class.

英语课堂上我们经常使用录音机。

She paces the whole class in studying English industriously.

她在刻苦学习英语上给全同学树立了榜样。

This preferential ticket entitles you to travel first class.

"凭这张优惠票,你可以坐头等舱旅行。"

Marx inveighed against the evils of the property-owning classes.

马克思猛烈抨击了有产阶级罪恶。