subclass
n. 亚纲；子集；子类
v. 把……划入亚纲；将……编入子集
例句
'SSS' indicates the error message subclass.
' SSS '指出了错误消息子类。
Reducing coupling between a subclass and its superclasses.
减少了子类及其超类之间的耦合。
With this strategy, each proper subclass has its own table.
通过这种策略，每个子类都会拥有其自身的表。
