You create the util package, along with classes in it.

您创建了util包，以及包中的类。

youdao

Cfrubylib - a pure ruby library with classes and methods for system administration.

Cfrubylib—一个纯ruby库，其中包含用于系统管理的类和方法。

youdao

It works with classes you define in your application rather than forcing the use of a set of generated classes.

它使用您在应用程序中定义的类，不必强制使用一组生成的类。

youdao

Some schools in the United States and other countries offer Chinese language classes with government support from China.

VOA: special.2010.02.04

I did have a student who struggled with classes.

我有个学生对课程很纠结。

与职业发展咨询老师 - SpeakingMax英语口语达人

Some people have argued there's a module for sociology, for dealing with human groups, races and classes and so on.

有些人认为大脑中存在一个社会学模块,用以面对各种人类团体,种族以及阶级等

耶鲁公开课 - 心理学导论课程节选

As the city emphasized overnight, charter schools are open today, and students are continuing with classes.

FORBES: In Chicago, A Collision Of Big Labor, Politics And Kids

The three day schedule is packed with classes on topics ranging from wine and cheese pairing to classic Italian cuisine to mixology.

FORBES: Food University - Raise Your Culinary IQ This March

Through tourism, Zezinho has been able to save money to fund the start of a free DJ school with classes starting this July.

FORBES: Favela Tourism Provides Entrepreneurial Opportunities in Rio