🧩 词语组成解析
n. 斯蒂芬（男子名）
茨威格（人名）
🗣️ 情景例句
That's a good question, Robbie.
这是个好问题， Robbie。
How was it, sir?
它好吗？先生。
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。