Ultraphonics
超声学
🗣️ 情景例句
I can't drive a car, but I have a motorbike license.
我不会开汽车，但我有摩托车的驾驶执照。
To read without reflection is like eating without digestion.
学而不思，犹如食而不化。
They stretch out their legs like flying squirrels.
它们伸展四肢，就像飞行中的松鼠一样。