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.
tags = [self._extract_text(tag) for tag in soup.select(".tags a")]，这一点在同城约会中也有详细论述
Мерц резко сменил риторику во время встречи в Китае09:25，这一点在Line官方版本下载中也有详细论述
Kevin Church,Science team
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