浮沉

浮沉	fú chén	ups and downs (of life etc) / to drift along / to sink and emerge
浮	fú	to float / superficial / floating / unstable / movable / provisional / temporary / transient / impetuous / hollow / inflated / to exceed / superfluous / excessive / surplus
沉	chén	to submerge / to immerse / to sink / to keep down / to lower / to drop / deep / profound / heavy