This is fundamentally different from Web streams' pipeThrough(), which starts actively pumping data from the source to the transform as soon as you set up the pipe. Pull semantics mean you control when processing happens, and stopping iteration stops processing.
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随后又翻出来一件黄色卫衣，他说，那是一个很有门面的经理送的，穿出去体面。说完，又低头把衣服上的拉链抻了抻。阿妈说，“结婚的时候，都没见他这么认真打扮”。
Bournemouth v Sunderland, Saturday 12.30pm