Thecodont
a. 有槽齿的,槽齿类的
🔁 扩展释义
【医】 牙槽包牙的
🗣️ 情景例句
OK.
好的。
We can't recall how often he's written.
我们记不起来他每隔多久写一封信。
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。