Doboj
[地名] [波斯尼亚和黑塞哥维那] 多博伊
🗣️ 情景例句
He gives his harness bells a shake
摇动， 绳上的铃铛
First think,and then speak.
动口先动脑。
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。