Up-grading
v. 升级；[矿业] 提高品位（upgrade的现在分词）\\nn. 叠积作用, 加积作用
🧩 词语组成解析
up
[ʌp]
adv. 在上面，在高处;起床，起来;向上;由低到高;
adj. 向上的;上升的;竖立的，垂直的;举起的;
vt.& vi. 增加;加速;提高;举起，拿起;
prep. 在…的上端;向高处;沿…而去;向…上游;
n. 上升，升高;兴旺，繁荣;上坡;（价格等）上涨;
[经] 分级, 归类
🗣️ 情景例句
You didn't put film in the camera, silly!
笨蛋，摄影机里没有放胶卷。
She is supposed to be one of the best singers.
大家认为她是最有名气的歌星。
It was at Charlie's wedding. You were playing the piano.
那是在查理的婚礼上，你在弹钢琴。