如果你手边没有精油，把你桌上的橙子削皮，然后把它碾碎，让橙子的香味释放出来。

If you don't have essential oils on hand, peel an orange at your desk and crush the rind in your hand to release the scent of the orange.

youdao

而这里的寓意就是火车会渐渐追上它并把它碾碎。

And yet the implication is that the train will eventually catch it up and savage it.

youdao