Duc
abbr. [电子]数字上变频器（Digital Up Converter）
🗣️ 情景例句
Hi!
嗨！
It doesn't work.
它出故障了。
Tazieff was able to set up his camp very close to the volcano while it was erupting violently.
当火山正在猛烈地喷发时，塔捷耶夫有办法把帐篷搭在离它非常近的地方。