Long story short: Buying a robot vacuum just because it's cheap puts that glorious hands-off cleaning experience in jeopardy. But not all cheap robot vacuums are crappy, even compared to a few years ago. Smart mapping and self-emptying docks are super easy to find for just a few hundred dollars, and more premium features like small obstacle avoidance and automatic mop washing and drying can often be found below $500.
在传音的模块化手机里，手机的所有模块都可以解耦了——你可以通过磁吸式的点位，把无线通讯模块、麦克风模块、两块3000mAh的电池模块、一整个相机模块全部拆出来。最后剩下的，是一个只有4.9毫米厚度的手机，比 iPhone 17 air还薄。
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