Pelkey
[人名] 佩尔基
🗣️ 情景例句
Particularly in the construction field.
特别是在建筑业。
Her name has slipped from my mind.
我想不起她的名字了。
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。