Echolucent
[医]无回音区
🗣️ 情景例句
I love keeping animals for companionship.
我喜欢养动物为伴。
Ouch! I fell down and cut my knee!
好痛呦！我跌倒割伤了膝盖！
and because there is so much of it the function would seem to e important.
睡眠占去那么多时间，所以其作用似乎还是很重要。