Echosonogram
超声回波图
🗣️ 情景例句
Thank you, no.
谢谢， 不用了。
How long have you lived here?
你住在这里多久了？
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。