Dopploy
多普勒铸铁
🗣️ 情景例句
on the patio this morning.
要在院子 。
He might have been held up in a traffic jam.
他可能因交通阻塞而耽搁了。
The Moon is likely to become the industrial hub of the Solar System,
月球很可能成为太阳系的工业中心。