upgrade基本解释
vt,[计]使升级；提升；改良品种,同近
upgrade相关例句和用法The hotel has recently been refurbished and upgraded..这家酒店最近重新装修过，设施更加完善了。
upgrade英英释义使升级；提升；改良品种英释vvto make a computer, machine, or piece of software better and able to do more things
upgrade短语upgrade oneself,提升自我.短语
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