Echometry
测回声术
🗣️ 情景例句
Goodbye, thanks for inviting me. I had a lovely time.
再见，谢谢您的邀请。我度过了一段美妙的时光。
The end justifies (or sanctifies) the means.
只问目的，不问手段。
I haven't seen you for ages.
我好久没见到你了。