SelectWhat's included
Obstacle detection and cliff sensors are other key features to look out for. The former helps the robot vacuum navigate around furniture while it cleans, rather than mindlessly pushing its way into it. Many also offer no-go zones, letting you block off areas you don’t want the robot to enter. Meanwhile, cliff sensors prevent robot vacuums from tumbling down the stairs, making them the best vacuum for multi-level homes.
，这一点在新收录的资料中也有详细论述
if count == 0 { ... } // correct
Standard Digital
。新收录的资料是该领域的重要参考
（三）旅客车辆包括该车辆所载行李灭失或者损坏的，每一车辆不超过10000计算单位；
In simple terms, we require correctness through our API design.，这一点在新收录的资料中也有详细论述