Sonolog
回声测井
🗣️ 情景例句
He needs to work.
他需要工作。
He is rich enough who owes nothing.
无债就是富。
A game that is very popular with these young swimmers is the underwater tricycle race.
这些幼小的游泳运动员非常喜爱的一种游戏是水下三轮车比赛。