单动联接齿轮
In hipper Shoreditch, small independent stores hawk colourful, one-gear bikes to graphic artists and web designers.
ECONOMIST: More people are riding bikes, but cycling is stuck in a niche
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。