Circular aperture
[电] 圆孔
🧩 词语组成解析
🗣️ 情景例句
Are you Mr. Chen?
你是陈先生吗？
A good head and an industrious hand are worth gold in any land.
聪明脑袋勤劳手，走遍天下贵如金。
Just now we all watched you sign to show that you had received the cheque.
刚才我们大家都观察到了你为表明已收到那张支票而签名。