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
I've heard the weather here is ideal, just like spring most of year.
我听说这儿的天气很理想，四季如春。
Would you take them to my room?
能送到我的房间吗？
certainly it is more difficult than the arts which involve appreciation of flat forms,
欣赏雕塑品当然比欣赏平面的艺术品要难。