Cathautograph
阴极自动记录器
🗣️ 情景例句
in the children's ward.
在小儿科病房那边。
Which one is more economical?
哪一个是比较经济的？
The development of the modern beehive in 1851 made it possible to design experiments to research the language of honey bees.
1851年现代蜂箱研制出来后，这才有可能来设计实验，研究蜜蜂的语言。