Calcium butoxide
[化] 丁醇钙
🧩 词语组成解析
[机] 丁氧金属, 丁醇金属
🗣️ 情景例句
who have made my stay in the United States so wonderful.
是你们使得我在美国的生活如此多采多姿。
You may go farther and fare worse.
一动不如一静。
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。