The industry hasn't quite embraced modular smartphones just yet, even though there have been some nifty concept designs. Google's Project Ara prototype goes back more than a decade, and the same can be said of other concept designs that never saw the light of day.
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刘成的妻子早年曾怀过孕，但不幸流产。此后因子宫内膜粘连，再也没能怀上。
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