Catt
n. (Catt)人名；(英)卡特\\nabbr. 屏极冷却式发射管（Cooled-Anode Transmitting Tube）；电信科学技术研究院（China Academy of Telecommunications Technology）
🗣️ 情景例句
What is it?
是个什么样的计划？
Time past cannot be called back again.
光阴一去不复返。
I'm sorry, but this week isn't very convenient for me.
对不起，这个星期我都不方便。