Synnematin
共霉素
🗣️ 情景例句
That's a great idea, Grandpa!
这太好了， 爷爷。
In college I majored in science.What was your major?
在学院我主修了自然科学，你主修了什么？
I can't afford to go to a restaurant every day.
每天都去餐馆吃饭，我真是支付不起。