that从句后为什么有两个are,reason后面是不是少加了个why或什么别的?
Steve Lafleur revives the debate and argues that low fares are part of the reason transit lines are struggling.低票价是公交线路陷入困境的部分原因
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Steve Lafleur revives the debate and argues that low fares are part of the reason transit lines are struggling.低票价是公交线路陷入困境的部分原因