Alcanna
(=alkanna)紫朱草
🔁 扩展释义
【医】 紫朱草
🗣️ 情景例句
You're right.
你说得对。
The foundation of true joy is in the conscience.
真正的愉快之根本在于良心。
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。