1. I left a suitcase on the train to London the other day.
    几天前我把一只手提箱忘在开往伦敦的火车上了。

2. I look out of the train window with a heavy heart.
    我心情沉重地朝火车窗外望去。

3. In Portland, Maine, the land along the old train tracks near the coast has become a green belt of trails between areas characterized by housing developments and those characterized by downtown businesses.
    在缅因州的波特兰市，那离海岸不远处的旧铁路延线的土地已经变成了一长条绿化带，正好处于以住宅开发为特征的区域和市中心以商业为特征的区域之间。

4. From now on, my life will be divided into two parts, with the line drawn by that train.
    从今以后，我的一生将被划分成两个部分，这列火车的行程划出了其中的分界线。