Arquad
卤化烷基三甲基铵(阳离子表面活性剂), 季铵盐萃取剂
🗣️ 情景例句
It was nice here, too.
这儿也很好。
He received full credit for his studies at a previous school.
他在一所先前的学校取得了所有课程的学分。
I'm sorry you feel that way.
你这么说，太令人遗憾了。