Apicale segmentum
[医] 尖段
🧩 词语组成解析
节, 段
🗣️ 情景例句
You miss her.
你思念她。
You are useless!
你真没用！
and we have only to turn to that extraordinary discovery of echo-location in bats to see a case in which the voice plays a strictly utilitarian role.
我们只要看一看蝙蝠回声定位这一极不寻常的发现，就可以探究一下声音在什么情况下有绝对的实用价值。