Clv
[计] 恒定线速度
🗣️ 情景例句
Don't worry, be happy.
别担心，开心点。
It's a good thing you reminded me to take my heavy coat.
谢谢你提醒我拿我的厚衣。
How did the bees know exactly in which diection to fly?
蜜蜂是怎样确切地知道朝哪个方向飞呢？