Echolocation
[医] 回声测定
🗣️ 情景例句
I enjoy writing.
我喜欢写作。
And the problems that some of us have had in the past year.
和去年我们一些人遇到的问题。
I have just heard from my sister, Mary.
我刚收到我妹妹玛丽的一封信。