Echolocating
(echolocate 的现在分词) vt.凭回声(或回波)测定…的方向(或位置)
🗣️ 情景例句
Just make the few changes I suggested and your letter will be perfect!
只要改动我提到的个别地方，你的信就会很完美了。
He is in difficulty in his business.
他在事业上遇到困难了。
Thank you very much.
谢谢。