Upconverter
升频器; 上转换器
🗣️ 情景例句
Yes. The number, please,of the Staten Island Ferry lost-and-found office.
我想问一下Staten岛渡轮失物招领处的电话号码。
Has everybody got a sheet?
每个人都拿到材料了吗？
and he is very pound of the fact.
他甚至引以为自豪。