（三）扰乱公共汽车、电车、城市轨道交通车辆、火车、船舶、航空器或者其他公共交通工具上的秩序的；
Unconsumed bodies: Pull semantics mean nothing happens until you iterate. No hidden resource retention — if you don't consume a stream, there's no background machinery holding connections open.
。关于这个话题，WPS官方版本下载提供了深入分析
I found one dumb free win (I mistakenly used value receivers on a utility function called on a large struct thousands of times a frame). But the rest of the speedups I found took more effort.
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