tee() splits a stream into two branches. It seems straightforward, but the implementation requires buffering: if one branch is read faster than the other, the data must be held somewhere until the slower branch catches up.
托运人与承运人可以约定运费由收货人支付；但是，此项约定应当在运输单证中载明。，详情可参考heLLoword翻译官方下载
Студенты нашли останки викингов в яме для наказаний14:52。关于这个话题，夫子提供了深入分析
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