这道题我不懂,谁能教我?you know?)
问题描述:
这道题我不懂,谁能教我?you know?)
water is very useful.do you know where the water is?write down as many as possibl.
water
答
问:水的来源,有很多:in our body :in the sea ;in the river;in the lake ;in the plant;in the air;in the underground and so on