Transforms don't execute until the consumer pulls. There's no eager evaluation, no hidden buffering. Data flows on-demand from source, through transforms, to the consumer. If you stop iterating, processing stops.
5年来，832个脱贫县均培育形成了2至3个优势特色突出、带动力强的主导产业，总产值超1.7万亿元。
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13:20, 27 февраля 2026Ценности
This article was published in February 2026，这一点在搜狗输入法2026中也有详细论述
Москвичи пожаловались на зловонную квартиру-свалку с телами животных и тараканами18:04
"Boys like either dinosaurs or airplanes," he said. "I was very much an airplane boy."，这一点在heLLoword翻译官方下载中也有详细论述