英语语法分析

The metaprogram is no longer of any use because the change must be made at a lower level.

这样一来元编程就没有任何作用了，因为这些修改必须在更低的层次上进行。

This method instructs Grails to metaprogram the validation methods onto the specified domain class as it would normally during run time.

此方法指示Grails将验证方法元编程到指定的域类上，就像通常在运行时所做的一样。