1819, from key (n.1) in sense of "mechanism of a musical instrument" + board (n.1). Originally of pianos, organs, etc., extended to other machines 1846. The verb is first recorded 1926 (implied in keyboarding).
实用例句
1. To close your document, press CTRL+W on your keyboard.
关闭文件时要同时按键盘上的CTRL键和W键。
来自柯林斯例句
2. I was expected to familiarise myself with the keyboard.
对我的要求是熟悉键盘。
来自柯林斯例句
3. Tanya's hands rippled over the keyboard.
塔尼娅的双手在琴键上翻飞。
来自柯林斯例句
4. He studied the keyboard carefully, one finger poised.
他仔细研究了键盘，一个手指随时准备敲击。
来自柯林斯例句
5. A bad keyboard can make life unnecessarily difficult.
