1986年出生的杜耀豪，在德国家中和母亲整理旧物时，发现一个塑料袋里，装着厚厚一叠旧相片和底片。光线穿过房间窗户，透过底片，映照出黑白灰人像，母亲惊喜地喊道：“这是我们小时候的照片，七兄弟姊妹！”
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.
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When is Michigan vs. Illinois?Michigan vs. Illinois takes place at 8 p.m. ET on Feb. 27. This game takes place at the State Farm Center.