用 MacBook Neo 这样的入门产品，并不意味着你无法带来激动人心的创造。
command just because you ran it in a different buffer
。关于这个话题，whatsapp提供了深入分析
Now, you can get an autonomous dirt-sucker with serious cleaning chops for $500 — sometimes even $300 or less. But you get what you pay for in this space; don’t expect affordable robot vacuum cleaners to have all of the bells and whistles that premium machines do, like self-emptying capabilities or advanced dirt detection. After testing dozens of robot vacuums at various price points, I’ve narrowed down our top picks for the best budget robot vacuums you can buy right now.
Photograph: Chris Haslam