Dorrclone
道尔型水力旋流器
🗣️ 情景例句
Fine, thank you, Mr. Mrarchetta.
都好， 谢谢你 ，Mrarchetta先生。
I got there by plane.
我坐飞机去的。
After working with bees for many years, Professor Von Frisch was puzzled by something he had noticed again and again.
在和蜜蜂打了多年的交道后，冯·弗里施教授对他反复注意到的事感到迷惑。