Duc
abbr. [电子]数字上变频器（Digital Up Converter）
🗣️ 情景例句
His actions express his love more than any words could do.
他用行动表示的爱胜过任何言语。
The capital of my country id Beijing.
我国首都是北京。
Then why do you want to sell it?
那么，您为什么要卖掉它呢？