用英语怎么翻译?
这些不是她的钢笔。她的在书包里。用英语怎么翻译?
These are not her pens; hers are in the backpack.
These are not her pen. She's in the bag.
these are not her pens,hers are in bags~~~~
问:数学题书包的价钱是钢笔的5倍,文具盒的价钱是钢笔的3倍。如果买一个文具盒、一支钢笔和一个书包一共花费72元,问每支钢笔多少元?
答:算术法: 假设一支钢笔单价为1(是1份,不是1元), 则依题意知书包单价为5,文具盒单价为3; 也就是说,一支钢笔一个书包一个文具盒三者加在一起的价钱相当于钢笔...详情>>