During the rush hours, particularly in big cities, you can often see a sea of bicycle riders in the streets.

在交通高峰期，特别是在大城市，你会看到街道上一片自行车的海洋。

youdao

During the rush hours, particularly in big cities, you can often see a sea of bicycle riders in the streets.

在交通高峰期，特别是在大城市，你会看到街道上一片自行车的海洋。

youdao