pen-down

基本解释

• n.下笔

同根派生

英汉例句

用作名词 (n.)

• After he finished his exercise,he put down his pen.
  他做完练习，就放下笔。
• Tapping the pen twice is equivalent to double-clicking a mouse.
  轻击两下笔，这相当于双击了鼠标。