1·汤姆是一个学生，他可以花640元买一个健身带。
Tom is a student and he can buy a fitness band for 640 yuan.
2·如果这样，那么，骨骼肌总数也就增加到640块了。
If so, then the total skeletal muscle was also increased to 640.
3·公元640年左右，阿拉伯人进入埃及建立了阿拉伯国家。
Around 640 A. D., Arab got into Egypt to build up Arabian nation.
4·沙地跑道：长640米，宽10米环形沙地跑道。
Sandy runway: length 640 meters, 10 meters wide circular sand track.
5·方法对640例不孕症患者的不孕因素进行回顾性分析。
Methods The aciesis factor about 640 cases patients made a retrospective analysis.
6·卢马公司提供可建设2400 ~ 8640 W电能的系统。
LUMA offers systems that can produce between 2, 400 and 8, 640 watts of electricity.
7·恒星位于猎户星座司长约 640 光年远离地球。
The star is located in the Orion constellation, about 640 light-years away from Earth.
8·但是，你同样也别忘记了两者都买要花费640美元，并且两个设备都得带。
But, you also can't ignore that buying both would cost $640 and require carrying both devices.
9·永宁只是它西北部的一个山区，坝子四面环山，海拔2640米。
Yongning is one of its mountain areas, 2, 640 metres above sea level and surrounded by mountains.
10·亚曼塔瓦山高达1640米（5381英尺），是乌拉尔山脉南部最高的山峰，连接着考斯温斯凯山脉（向北600千米）。
Mount Yamantaw stands at 1, 640 metres (5, 381 ft) and is the highest mountain in the southern Urals.