美股三大指数收盘涨跌不一，加密货币概念股走高
Robert PlummerBusiness reporter
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All of the robovacs I've tested have announced out loud when they're in remote viewing mode. But not all robot vacuums provide that courtesy notification (the DJI Romo, for one, does not).
macros are expanded. Expanding macros requires name resolution, which,
regexps regular expressions support (on)