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1.The car was stuck in the mud, and the dead rollers were a real challenge to get out of.
汽车陷在泥里，死滚轮是摆脱它的一大挑战。
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2.The engineer had to figure out how to remove the dead rollers from the machine before it broke down.
工程师必须弄清楚如何从机器中取出死滚轮，以免机器损坏。
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3. The construction workers had to deal with the dead rollers on the roof, which made the job more difficult.
建筑工人不得不处理屋顶上的死滚轮，这使得工作更加困难。