英语 第六单元A部分的let's talk英文及翻译.越快越好,奖金多多,快

Where does the rain come from?雨是从哪儿来的?It comes from clouds.它来自云.Where does the cloud come from?云来自哪里?It comes from the vapour.它来自于蒸汽.Where does the vapour come from?蒸汽来自哪里?...