英语翻译He remained inflexible even when the wisdom of changing his mind must have been obvious.还有一句。Piggy-back service alone can save shippers up to one half of the transportation costs. 英语
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【答案】 尽管改变想法显然是比较明智的,他却依然坚持（自己的想法）.
单单是背负式运输服务就能为托运人省去一半的运输费用.