on or about短语⁴²²⁰⁸ 基本例句 🌏左右；约于；于或约于 Electrically warmed blankets, bed pads, foot- muffs or the like; electrically warmed clothing, footwear or ear pads or other electrically warmed articles worn on or about the person; 电暖的毯子、褥子、足套及类似品，电暖的衣服、靴、鞋、耳套或其他供人穿戴的电暖物品； china-customs