Catecholamin
[化] 儿茶酚胺
🗣️ 情景例句
I haven't got anything to do now; I'm so bored.
我现在无事可做，感觉很无聊。
Mr. Stone Jones of the United Nations.
来自联合国的世通.琼斯先生。
As is so often pointed out, knowledge is a two-edged weapon which can be used equally for good or evil.
正像人们常常指出的，知识是一把双刃刀，可以用于造福，也可以用来为害。