Hydrofluosilicate
[医] 氢氟硅酸盐
🗣️ 情景例句
I understand your feelings about it, Richard.
我了解你对这种事的心情， Richard。
Where can I find a cheap coffee perk for my dorm room?
哪儿可以找到在我宿舍使用的廉价滤式咖啡壶呢？
'What has happened?' she asked.
“发生了什么事？”她问，