Anechoic
a. 无回声的, 无反响的
🏥 医学释义
消（回）声的，无（回）声的
🗣️ 情景例句
You must be mistaken.
你一定搞错了。
Open your eyes!
眼睛放亮一点！
He may never be sure where the next meal is coming from, but his is free from the thousands of anxieties which afflict other people.
他可能从不知道下顿饭有无着落，但他不像有人那样被千万桩愁事所折磨。