Phosphonate
膦酸盐, 膦酸酯
🗣️ 情景例句
I care.
我关心。
Now it is the child's turn to make a good home for his children.
现在轮到孩子们自己为其儿女建造美好的家庭了。
Suppose it rains,what shall we do?
万一下雨，我们该怎么办？