1. What causes the acid rain that forms from water passing through polluted air? 是什么造成了雨水穿过污染的大气而形成的酸雨?
2. Most often, there's Ann Estelle, a woman with short, straight hair, big glasses, hat and an acid tongue. 卡片上最常见的是安·埃丝特尔,这个女人有一头短短的直发,戴着一副大眼镜和一顶帽子,说话尖刻。