过了半小时以后，当我们透过车窗看另一列火车时，我们看到我们所乘的火车好像是在缓慢地平稳地开始开动了。

A half-hour passes. As we look at the other train through our window, we see that our train seems to start moving, smoothly and slowly.

youdao

过了半小时以后，当我们透过车窗看另一列火车时，我们看到我们所乘的火车好像是在缓慢地平稳地开始开动了。

A half-hour passes. As we look at the other train through our window, we see that our train seems to start moving, smoothly and slowly.

youdao