Good morning, everyone. Today we're going to discuss the history of the bicycle. Now, many people believe the bicycle was invented in the 19th century, but in fact, the first two-wheeled vehicle, called the draisine, appeared in 1817 in Germany. It had no pedals, and riders pushed their feet against the ground to move. Later, in the 1860s, pedals were added to the front wheel in France. However, it wasn't until the 1880s that the chain drive system, similar to what we use today, was developed in England. This made cycling much safer and more efficient. So, remember: the key innovation that shaped the modern bicycle was the chain drive.
❓ 강의에 따르면 현대 자전거로 이끈 주요 발전은 무엇이었나요?
A. 프랑스에서 앞바퀴에 페달을 추가한 것
B. 독일에서 드라이지네의 발명
C. 영국에서 체인 구동 시스템의 발전
D. 1890년대 고무 타이어의 도입
✅ 正确答案
The development of the chain drive system in England