Afwillite
柱硅钙石, 水合硅酸钙
🗣️ 情景例句
Very splendid. How about patent rights?
很不错。它的专利权怎么样呢？
I'm afraid there's nothing available before noon.
恐怕中午前是没法看了。
We aren't able to supply the third ad fifth items.
第三及第五项目，我们没有货供应。