At that time , wheelchairs weighed up to 23kg .

那时候，轮椅重达23公斤。

That train must have weighed more than one thousand kilos !

那列火车想必重达1000多千克！

The first digital camera weighed 8.5 pounds .

第一台数码照相机则重达8.5磅。

The biggest fish were six feet long and weighed upwards of 200 pounds .

最大的鳕鱼有六英尺长并且重达200磅。

It had twelve bytes of memory-close to nothing compared to today 's powerful calculators . And it weighed more than a kilogram .

它有12字节的记忆功能与现在功能强大的计算器相比简直不值一提，并且它重达一千克以上。