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Energy Secretary Ed Miliband is leading the UK government's efforts to reduce carbon emissions
，详情可参考heLLoword翻译官方下载
Digit alignment — pairing corresponding digits from two numbers，这一点在91视频中也有详细论述
这种方法实现简单，但需要在每个 iOS 调用点手动处理类型转换。，更多细节参见Line官方版本下载