雅思听力

🎧 Listening Transcript

Good morning, everyone. Today we're going to discuss the history of the bicycle. The first bicycle, called the 'velocipede', was invented in the early 19th century. It had no pedals; riders pushed it along with their feet. Later, in the 1860s, pedals were added to the front wheel, creating the 'penny-farthing'. However, this design was dangerous because the rider sat very high. It wasn't until the 1880s that the 'safety bicycle' was developed, with two equal-sized wheels and a chain drive, making it much safer and more practical for everyday use.