Conversance
n. 熟悉, 精通
✅ 同义词
🗣️ 情景例句
Say what?
你说什么？
What's your friend's name?
你的朋友叫什么名字？
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。