【词汇】102 types of transportation(102种交通工具)
bicycle /ˈbaɪ.sɪ.kl̩/ 自行车bicycle sharing 共享单车tricycle /ˈtraɪ.sɪ.kl̩/ 三轮车motorcycle /ˈməʊ.təˌsaɪ.kl̩/ 摩托车balance bike 平衡车skateboard
bicycle /ˈbaɪ.sɪ.kl̩/ 自行车bicycle sharing 共享单车tricycle /ˈtraɪ.sɪ.kl̩/ 三轮车motorcycle /ˈməʊ.təˌsaɪ.kl̩/ 摩托车balance bike 平衡车skateboard