Galactography
乳管造影术
🗣️ 情景例句
Thank you. I will be there on time.
谢谢你，我会准时到的。
The ox is never woe,till he to the harrow go.
挂耙去耕地，牛才知辛苦。
It was made in Germany in 1681.
是1681年德国造的。