Echosounding
音响测深法
🗣️ 情景例句
Let's go have some Michigan burgers and fries.
我们点密歇根汉堡和薯条吧。
What lousy weather!
多糟的天气!
When we talk about the universe, we mean the earth, the sun, the moon and the stars, and the space between them.
人们谈论宇宙时，是指地球、太阳、月亮、星星以及它们存在的空间。