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on the rails

adv.正常进行,在正常轨道上

难易程度:

on the rails为短语/超纲词汇
1. They spiked the rails to the ties.
    他们把铁轨钉到枕木上。

2. Reading is only a partial solution, for the monotonous rhythm of the wheels clicking on the rails soon lulls you to sleep.
    看书只能解决部分问题。车轮与铁轨间单调的嘎喳声很快就会送你进入梦乡。

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