Ceanothine
[化] 美洲茶碱
🗣️ 情景例句
Coming! Coming!
来了， 来了。
Because hs is thinking of majoring in this subject at the university.
因为他考虑把此学科作为在大学里的专业。
He did not know from which part of Africa his ancestor had come.
他不知道祖先来自非洲的什么地方。