upgrade
- vt. 使升级；提升；改良品种
- n. 升级；上升；上坡
- adv. 往上
- adj. 向上的
英英释意
- 1. an upward slope or grade (as in a road);
- "the car couldn't make it up the rise"
- 2. software that provides better performance than an earlier version did
- 3. a reservation that is upgraded;
- "I got an upgrade to first class when coach class was full"
- 4. the property possessed by a slope or surface that rises
- 5. hardware that provides better performance than an earlier version did
- 6. the act of improving something (especially machinery) by raising it to a higher grade (as by adding or replacing components);
- "the power plant received a new upgrade"