Treadgold
[人名] 特雷德戈尔德
🗣️ 情景例句
But I need some information.
但我需要一些资料。
Why are you so busy?
你为什么这样忙碌？
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。