Obtusin
二羟基三甲氧基甲基葸二酮, 纯菇菌素
🗣️ 情景例句
I am sure you would like to know more about it.
我相信您一定想知道详情。
Where are you going?
你去哪儿？
What was the population of the more developed countries in 1950?
1950年较发达国家的人口是多少？