Catacoustics
n. 回音学
🔁 扩展释义
【医】 回声学
🗣️ 情景例句
A little over two hours.
两个钟头多一点。
I'm afraid that won't be possible,much as we'd like to.
尽管我们很想这样做，但恐怕不行了。
How many do you need?
你需要多少？