基本解释n.下筆同根派生 pen-down相关词英汉例句用作名詞 (n.)After he finished his exercise,he put down his pen.他做完練習,就放下筆。Tapping the pen twice is equivalent to double-clicking a mouse.輕擊兩下筆,這相儅於雙擊了鼠標。pen-down更多例句