重镇

重镇	zhòng zhèn	(military) strategic town / (fig.) major center (for commerce, culture or tourism etc)
重	chóng	to repeat / repetition / again / re- / classifier: layer
重	zhòng	heavy / serious / to attach importance to
镇	zhèn	to press down / to calm / to subdue / to suppress / to guard / garrison / small town / to cool or chill (food or drinks)