Ducs
(duc 的复数) abbr. [电子]数字上变频器（Digital Up Converter）
🗣️ 情景例句
He's cheating on his wife.
他对妻子不忠。
Generally speaking, it's cheaper but slower to ship goods by sea than by rail.
总的来说，海运比铁路运输更便宜，但速度慢一些。
Their feet were fixed to one bar and their hands to another bar.
他们的脚拴在一根铁杠上，他们的手拴在另外一根铁杆上。