Catacoustics
n. 回音学
🔁 扩展释义
【医】 回声学
🗣️ 情景例句
It's a serious matter for a lot of us.
对我们许多人来说这可是个严重的问题。
The contract will be sent to you by air mail for your signature.
合同会航邮给你们签字。
CHRISTMAS DAY
圣诞节