Stereosalpingography
立体输卵管X线照相术
🗣️ 情景例句
Any discount, OK?
可以打个折扣吗？
How long have you been studying English?
你学英语多久了？
This is done by a great number of ring-shaped air jets on the bottom of the craft.
船底装上大量环状喷气嘴以实现这一目的。