Sionox
二氧化硅
🗣️ 情景例句
Please go over it and see if everything is in order.
请再过目一下，看看是否都符合规定。
They are still lower than the quotations you can get elsewhere.
这些报价比其他任何地方都要低得多。
I like having a twin sister.
我喜欢有一个孪生姐姐。