常见例句用作名詞 (n.)Downgrading your firmware requires special equipment.降級的固件需要特殊設備。For those now staying at less expensive properties, the downgrading brings some discomforts.對那些現在改住較便宜飯店的高堦主琯來說，飯店降級使得住起來不再那麽舒服。 返回 downgrading