Quaternaries
[化] 季盐; 季铵盐类
🗣️ 情景例句
She owes her good health to her regular life.
她把健康归功于规律的生活。
When is grandparents' wedding anniversary?
祖父母的结婚周年是什么时候？
He did everything very slowly.
他做什么都很慢。