Echocardiogram
n. 心回波图, 超声波心动图
🗣️ 情景例句
Fine. Are you buying a house
好的。你们是要买房子呢？
Don't you have my hat?
你没拿我的帽子吧？
A sound made by tapping on the hull of a ship will be reflected from the sea bottom,
敲打船体所发了的声音会从海底传回来，