in total后面不能加钱.
例句：1.It's five kilometers in total length.
全长有五公里.
2.That will cost you 7.50 in total.
你总共要花7.50英镑.
3.These products,in total,account for about 80% of all our sales.
这些产品总共约占我们全部销售额的80%.