备考这一年，她杜绝了一切社交。唯一一次出去参加聚会，是父亲的60岁大寿；关系最好的同学想来家里做客，她婉言谢绝，“我没有时间陪他们聊天”。
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.
，这一点在体育直播中也有详细论述
You can also copy a line from the Soong build log and adjust it as you need.
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