upgrade是什麼意思 upgrade意思介紹

1、upgrade的意思是：使（機器、計算機系統等）升級；提高；改進 。

2、例句：

to upgrade the towns leisure facilities.改善鎮裏的休閒設施。

Helicopters have been upgraded and modernized.直升機已經更新換代，裝配了現代化設備。