Foodlessness
n. 食物；养料 (food的变形)
🗣️ 情景例句
Yes, but I can't type very quickly.
有，但我打得不是很快。
Remember us on payday with a good bone.
发工资的日子可别忘了请客。
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。