每天早晨，我的徒步旅行包括下三阶楼梯，然后提着我的竹制自行车进入到城市的街道，戴上头盔和护具。
Each morning, my trek includes a walk down three flights of stairs, where I grab my handmade bamboo bicycle and enter the city streets with my helmet fastened and secured.
她一步迈四阶楼梯，把自己锁在她的房间里了。
She took the stairs four at a time and locked herself up in her room.
如果一阶楼梯的高度缩短到两毫米，大部分人将走楼梯。
If the height of a single step is off by as little as two millimeters.
应用推荐