Upconversion
上变频; 上转换; 升频转换
🗣️ 情景例句
ASPCA Animal Shelter.
ASPCA动物收容所。
Excuse me to have troubled you.
对不起麻烦你。
He did not know from which part of Africa his ancestor had come.
他不知道祖先来自非洲的什么地方。