Salufer
氟硅酸钠
🗣️ 情景例句
He landed another job soon after he left his former company.
他离开以前的公司后很快找到了另一份工作。
This milk has gone bad.
这牛奶变质了。
The one with the money got such a fright that he dropped the bag.
拿钱的那个小偷吓得把提包都扔了。