"as He commanded you": Just as offerings (are slaughtered) by shechitah, so, chullin ("mundane" animals), by shechitah.
— But perhaps, just as offerings in the "place" (of the Temple — the azarah, the Temple court), so, chullin in the "place"; it is, therefore, written (Ibid.) "When there is distant from you the place … then you shall slaughter." When the place is distant, you slaughter (chullin), and you do not slaughter (chullin) when the place is near — to exclude chullin from being slaughtered in the azarah.