yellowmoon27
How much do they cost? 它们多少钱?How much 多少cost 花费,价值 ------------------They cost three yuan. 它们三元钱.How much does it cost? 它多少钱?It costs ten yuan. 它十元钱.
无敌小肉
How much does it cost?它们多少钱It costs three yuan.它们三元钱他们多少钱和他要多少钱都用How much does it cost?这是习惯用语It costs ten yuan.它要十元