Doline
n. [地]落水洞,石灰坑,斗淋
🗣️ 情景例句
I made it myself.
我自己做的。
How often did I tell you to speak clearly?
我告诉你多少次要讲清楚?
namely 6 million million miles.) Radio waves also travel at the speed of light,
即6万亿英里）。无线电波也是以光速传播的。