更新时间：2026-07-07 23:45:38
upgrading
upgrading是什么意思？
n.提升；浓缩
- 单词
- upgrading
动词 upgrade:- rate higher; raise in value or esteem
- to improve what was old or outdated
- give a promotion to or assign to a higher position
- get better travel conditions
- give better travel conditions to
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