Ketonurine
食物性酮尿
🗣️ 情景例句
Don't be upset, Malcolm.
别懊恼了 Malcolm。
My brother is a member of the faculty.He teaches economics.
我的兄弟是全体教员中的一员，他是教经济学的。
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。