Echolocation
[医] 回声测定
🗣️ 情景例句
I think you might be amused.
我想你可能会觉得有趣。
The man is surveying land for a national park.
这个人正在测量国家公园的土地
Dressed in dark glasses and old clothes, they had taken special precautions so that no one should recognize them.
他们戴着墨镜，穿着旧衣裳，特别小心以防别人认出他们。