Whatfor
理由
🗣️ 情景例句
we would go down to the beach and catch crabs,
我们走到海边抓螃蟹，
Discussing all these details will get us nowhere.
讨论这些枝节问题是完全没有用的。
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。