Ceilometer
n. 云幕灯, 云高计
🗣️ 情景例句
Isn't it exciting, Grandpa?
真令人兴奋， 是吗， 爷爷？
Can you do it?
你行不行啊？
In the beginning they used to carve Chinese characters on stones to record important dates in history.
开始时，他们常把汉字刻在石头上，记载历史上重要的日期。