Safety bicycle
01
安全自行车, 安全型自行车
a type of bicycle with two wheels of the same size, featuring pedals and a chain drive, designed for stability and ease of use compared to earlier bicycle designs
语法信息
有生性状态
无生命
形态构成
复合词
可数
复数形式
safety bicycles
例子
The safety bicycle revolutionized transportation in the late 19th century.
安全自行车在19世纪末彻底改变了交通运输。



























