有需要时还会增加临时列车和额外车厢。

Temporary trains and extra carriages would be added as necessary.

youdao

我只买到了一张临时列车的站票，但总比什么都没买到好。

I only got a ticket for standing room for a temporary train, but it's better than nothing.

youdao

为了缓解由于乘客激增所带来的拥堵，北京西站将开通更多的临时列车。

Beijing West Stations says it will introduce more temporary trains to ease the congestion caused by the soaring Numbers of passengers.

youdao