Acetannin
乙酰鞣酸
🗣️ 情景例句
Excellent job.
做得太棒了。
The builders are already making plans.
建筑家们已经在着手计划了。
I knew that experts from the local museum would soon visit the cave.
我知道本地博物馆的专家会很快到山洞来探访。