Fluoridizer
氟化剂, 氟化器
🗣️ 情景例句
Learning foreigh languages should be fun.
学习外语应该是乐趣无穷的。
Would it be possible for me to have a closer look at your samples?
可以让我参观一下你们的产品陈列室吗？
The village seemed deserted, the only sign of life being an ugly-looking black goat on a short length of rope tied to a tree in a field nearby.
村里似乎无人居住，唯一的生命迹象是附近田里一只面目可憎的黑山羊，用一截短绳拴在一棵树上。