n.降级;下滑
动词downgrade的现在分词形式.
Downgrading your firmware requires special equipment. 降级的固件需要特殊设备。
For those now staying at less expensive properties, the downgrading brings some discomforts. 对那些现在改住较便宜饭店的高阶主管来说,饭店降级使得住起来不再那麽舒服。