经济学人下载:电动自行车冲击(2)

I think he means 'at' rather than 'to'
我想，他是想说at，而不是to。

2.bits and bobs 零碎物件

The microscope contains a few hundred dollars-worth of electronic bits and bobs.
这架显微镜内有价值数百美元的电子元件。