Umd
abbr. 便携数字智能产品（Ultra Mobile Devices）；PSP专用光盘（Universal Media Disc）
🗣️ 情景例句
I've been working like a madman all day.
我今天一整天都像个疯子一样工作。
You'll hurt yourself, if you don't take care.
你不专心的话，就会伤到你自己。
Chen Wei returns a few moments later.
片刻之后，陈伟回来了。