英译汉:I recently traced the arc of the Pearl River Delta for several hundred miles.

问题描述:

英译汉:I recently traced the arc of the Pearl River Delta for several hundred miles.
It is one construction site,with factories and apartment complexes and shopping plazas sprouting everywhere.

最近我沿着珠江三角洲的外廓走了几百英里.它是一个大型的建设场所,遍布着工厂、公寓楼和购物广场.非常感谢您的解答。只是逻辑上有些不明白。1是走了几百英里?2是外廓是一个建设场所?最好能再翻译得再严密些。�߲������ߵ���˼�����Dzιۡ����������齭����޵��⻡�������ߣ��ι����������ޡ�����������һ����Ľ��賡��