Phenarsen
４,５-二氯苯-1,3-二磺酰胺盐酸盐
🗣️ 情景例句
How often do you go running?
你多久跑步锻炼一次？
We'd like to hear what you say concerning the matter of packing.
我们很想听听你们在包装方面有什么意见。
We're sorry, but we 've had a slight price increase here.
真抱歉，不过我们出只涨了一点点而已。