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
Yes, I have my Passport. Here it is.
是的，我有护照。这就是。
Are you ready for your dessert now?
你现在准备好甜菜了吗？
Summer is from December to February, and winter is in June, July and August.
夏天从12月到2月，冬天是在6月、7月和8月。