The crosspieces of the ladder are never designed for rest, but for supporting the foot when the other steps for a higher level.
梯子上的横档从来不是用来休息的，只是为了在一只脚迈向更高处时，另一只脚可以有一个支撑。
The crosspieces of the ladder are never designed for rest, but for supporting the foot when the other steps for a higher level.
梯子上的横档从来不是用来休息的，只是为了在一只脚迈向更高处时，另一只脚可以有一个支撑。
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