Silicea
硅剂
🗣️ 情景例句
Thank you.
谢谢 。
One sin opens the door for another.
一个罪恶常为另一个罪恶开门。
The two men quarrelled bitterly and it was clear that the argument could only be settled by a fight.
两个人争吵不休，显而易见，只有较量一番才能解决问题。