自行车的英语怎么说

自行车的英文为"bicycle"。这个词的来源可能来自古希腊的一个词"Βιότος"，意思是"二轮马车"。例如，可以说：
I ride my bicycle to work every day.
The bicycle is a great way to get exercise and reduce pollution at the same time.
The tour company offers bicycle rentals for people who want to explore the city on two wheels.
希望这些信息对您有帮助。