Calcarea usta
[医] 生石灰, 氧化钙
🧩 词语组成解析
[医] 钙质纲
abbr. 美国网球协会（United States Trademark Association）
🗣️ 情景例句
Thank you very much.
非常感谢。
Could you give me an indication of the price?
您能提供一个参考价吗？
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。