Calcium sillicate
[机] 硅酸钙
🧩 词语组成解析
🗣️ 情景例句
She exchanged a few words with the foreigner.
她和那个外国人交谈了几句。
Please call me if you have any problems.
如果你有难题，就请打电话给我吧。
The lady who is standing behind the counter.
站在柜台后面的那位女士。