Xenograft
n. 异种皮移植
🏥 医学释义
异种生物瓣膜，异种移植物
🗣️ 情景例句
I'm going back to my office.
我要回办公室了。
Troubles never come singly.
祸不单行。
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。