Ducs
(duc 的复数) abbr. [电子]数字上变频器（Digital Up Converter）
🗣️ 情景例句
Mr. Carlson is busy at the moment. May I help you?
Carlson先生现在正忙着呢。我可以为你效劳吗？
To mention the wolf's name is to see the same.
说到曹操，曹操就到。
They're both fine,too. What about your family?
他们也都很好。你的家人好吗？