Echoranging
回声测距法
🗣️ 情景例句
He just can't keep a steady job.
他就是不能安心地在一个地方工作。
This man digs foundations for skyscrapers.
这个人在挖着高层大楼的地基。
A writer makes order out of the anarchy of his heart;
一旦作家从内心的紊乱中理出头绪，