Phenarsen
４,５-二氯苯-1,3-二磺酰胺盐酸盐
🗣️ 情景例句
I'm having some trouble keeping food down.
我吃东西时感到困难。
I wish I could.
不行。
But my father had described over and over again what we should see at every milestone, after leaving the nearest town,
而是父亲曾详细给我讲了，在过了离故乡最近的那个小镇后，在每一个路标处可见到些什么。