🧩 词语组成解析
forty-seven
🗣️ 情景例句
The answer leapt out at me.
答案突然在我脑海中闪现出来。
No,I don't understand.
不，我不明白。
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。