例如，我们不能生产电脑或开火车外出。
We cannot, for instance, manufacture a computer or operate a train service.
你可以到处走走，打开火车上的窗户。
他们在汉口到北京这一段铁路开火车。
旅客门离开火车站出口处时交出了车票。
The passengers gave up their tickets as they left the entrance of the railway station.
不要离开火车。
不要离开火车。
应用推荐