Pectolite
针钠钙石
🗣️ 情景例句
No problem. I'm glad to help.
小事情，我很高兴这样做。
Since we are likely to place sizable orders regularly we hope that you will make some special concessions.
由于我方将定期大批量订购，希望贵方作出一些特殊的让步。
When will it be ready?
什么时候能准备好？