Echogram
n. 超声波回声图, 回声深度记录
🗣️ 情景例句
He ofter overdrafts his account.
他的账户经常透支。
This is Mr. Jones.
这是琼斯先生。
They were expecting a valuable parcel of diamonds from South Africa.
他们正期待从南非来的一个装着钻石的贵重包裹。