// .* subsumes (.*[A-Z].* & .*[0-9].* & .*[!@#].*), so:
Последние новости。关于这个话题，51吃瓜提供了深入分析
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Maintenance is incredibly easy thanks to its self-emptying base where it holds dirt for around 60 days before needing to be manually emptied. It also uses 360° LiDAR mapping to self-navigate the home and avoid obstacles. And when the battery is low, the robot automatically recharges and resumes cleaning where it left off.