Echometry
测回声术
🗣️ 情景例句
Can we? When?
行吗 ？什么时候？
Your appointment will be next Thursday at 10 o'clock.
你的约会时间将是下一星期四的10点钟。
You see, I was hoping to give you a surprise.'
嗯，我是想让你大吃一惊。”