You use the active record pattern to wrap relational database persistence methods in domain classes.

活动记录模式则可用来在域类内包装关系数据库持久性方法。

youdao

If the relationship between the two classes were one of reference rather than of inheritance, then the error would be thrown on the first active use of a, rather than during the loading of a.

如果两个类之间的关系是引用关系而不是继承关系，那么会在第一次使用a时抛出错误，而不是在装入a时抛出。

youdao

It contains information about the Active Directory schema, which in turn defines the different object classes and attributes within Active Directory.

它包含有关Active Directory架构的信息，该信息又定义了Active Directory内不同的对象类和属性。

youdao

Be an engaged and active participant in all of your classes.

WHITEHOUSE: THE WHITE HOUSE

The data shows that active funds underperform without prejudice to asset classes, sector or style.

FORBES: SPIVA Spikes Mutual Fund Managers Again

The prosecution said the children led active lives, taking part in PE classes and activities including music, drama and dance, without any difficulties.

BBC: Amanda Webber