Eutrapelia
n. 机智,敏捷
🗣️ 情景例句
Hello, Susan.
喂 Susan。
How rude!
真没礼貌！
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。