他正坐在床边一把有靠背无扶手的椅子上阅读。

He was sitting on an upright chair beside his bed, reading.

《柯林斯英汉双解大词典》

一旦出现，他会直到达到下的台阶，温暖的隧道空气保持无冰抱扶手。

Once there, he would cling to the handrail until reaching the lower steps that the warmer tunnel air kept free of ice.

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