‘I’ve just arrived by train中的

问题描述:

‘I’ve just arrived by train中的

by 表示通过什么交通工具
(indicating a means of transport or a route taken 表示运输或取道的方式):travel by boat/bus/car/plane 乘船[公共汽车/小汽车/飞机]旅行 * travel by air/land/sea 航空[陆路/航海]旅行.