Etofylline
[化] 乙羟茶碱
🗣️ 情景例句
but this is an important opportunity.
但这是一次很重要的机会。
This is my first year of college, I'm a freshman.
这是我上大学的第一年，我是一年级学生。
Would it be too much to ask you to respond to my question by tomorrow?
可以请你在明天以前回复吗？