Tannisol
[医] 亚甲二鞣酸
🗣️ 情景例句
No. I really don't know how to go about it.
没有。我真不知道如何填。
In the fall, the boys prune the trees.
在秋天，男孩们便修剪那些树木。
Which one is cheap? Which one is dear?
哪一支便宜？哪一支贵？