Diacetylated
二乙酰的, 二乙酰基取代了的
🗣️ 情景例句
All right?
知道吗？
But Li Ming has promised to come home for the summer vacations.
但是李明已经答应暑假回家。
We don't need it until next month.
我们要到下个月才用得着。