They are traditionally lightweight and used for executing tasks such as cache cleanup and object cleanup.

这些线程通常都是轻量级的，用于执行缓存清理和对象清理之类的事务。

youdao

They are traditionally lightweight and used for executing tasks such as cache cleanup and object cleanup.

这些线程通常都是轻量级的，用于执行缓存清理和对象清理之类的事务。

youdao