bicycle是一个英文单词，作为名词基本含义为自行车；脚踏车；作为动词基本含义为骑自行车；其复数为bicycles；第三人称单数：bicycles；现在进行时：bicycling；过去式：bicycled；过去分词：bicycled；
基本例句为A bicycle came into sight on the main road.大路上出现了一辆自行车。
A bicycle is often more convenient than a car in towns.在城镇骑自行车常常比开车更方便。
