Aminopropionic acid
[医] 丙氨酸
🧩 词语组成解析
🗣️ 情景例句
Do you want a first class, business class or economy seat?
你想要头等舱、商务舱还是经济舱？
After eating breakfast,I go back upstairs again.
在吃早餐以后，我再回楼上。
I'll check back with by head office for you.
这个我回头会跟总公司查核一下。