Bituminizes
v. 加沥青处理（bituminize的第三人称单数形式）
🗣️ 情景例句
Do you ever think about your clildhood?
你回忆过童年吗？
Thank you for your kind cooperation.
谢谢您的合作。
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。