Upconversion
上变频; 上转换; 升频转换
🗣️ 情景例句
Hurt? What do you mean?
酸痛， 什么意思？
What were you doing when I called?
我打电话给你时你在干吗？
An important film director saw Chaplin acting a very funny part in a play.
一位颇有影响的电影导演看了卓别林在一个剧中扮演的一个非常滑稽的角色。