def _extract_text(node) - str:
Whether you have carpeted floors, hard floors, pets, or shoes that always seem to bring in dirt, this vacuum is built to handle it all. It comes with three different attachments for cleaning high, low, and all the annoying little places, as well as a wall dock and charger for easy storage.
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this.arr.push(val);
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（五）向场内投掷杂物，不听制止的；