Catalytic agent
[医] 催化剂
🧩 词语组成解析
a. 催化的\\n[医] 催化的
🗣️ 情景例句
Closed for repairs.
关门整修。
We're all anxious to hear Mr. Jones'remarks.
我们都很急切地想倾听琼斯先生的讲话。
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。