But people who favor the influx of the cheap labor force , on the other hand , maintain that migrants are needed to su ort the ma ive urban infrastructure co truction program .
But people who favor the influx of the cheap labor force , on the other hand , maintain that migrants are needed to su ort the ma ive urban infrastructure co truction program .
但是，另一方面，支持廉价劳动力流入的人主张，为了支持大规模的城市基础设施建设规划，流动人口是必需的。