Polysulfonate
多磺酸盐
🗣️ 情景例句
No. But in five or six months ...
不急。但是在五 、六个月后……
If it were not for hope, the heart would break.
人是靠希望活著的。
I think that young children often appreciate modern pictures better than anyone else.
我觉得小孩子们往往比任何人都更能欣赏现代绘画，