墨西哥一地铁发生垮塌事故已致23人死亡
日期:2021-05-05
Words in This Story
metro –n. an underground railway system in some cities
concrete –n. a hard, strong material that is used for building and made by mixing cement, sand, and broken rocks with water
line –n. part of a train or metro system
2/2 首页 上一页 1 2