Echogram
n. 超声波回声图, 回声深度记录
🗣️ 情景例句
It really was a wonderful ceremony.
那真是一个美好的（结婚）典礼。
Did you go play ball last night?
你昨晚去玩球了吗？
Yes, they're free. But there's usually a long line.
是的，免费。但常常要排长队。