Keyways
(keyway 的复数) n. 扁形钥孔, 键沟\\n[化] 键槽
🗣️ 情景例句
And now for ... something old,
现在， 接着是 一些旧的，
Know something of everything and everything of something.
既要有一般常识，又要有专业知识。
Thank you.
谢谢您。