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.
二是神舟二十三号飞行乘组中的1名航天员，将开展一年期驻留试验，而目前均为半年。
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The Netherlands' quiet embrace of the four‑day working week has captured international attention. Dutch employees work an average of 32.1 hours per week, the lowest in the EU, and well below the bloc's average of 36 hours.，更多细节参见夫子
然而，並沒有證據顯示美國選舉中存在「猖獗」的選民舞弊。確實偶有發生，但數據顯示屬於極為罕見的情況。