liú yù 
		river basin
valley
drainage area
		 
		
		
		
		
			 
		
				
		
			Liú yù 
		Liu Yu, founder of Song of the Southern dynasties 劉宋|刘宋, broke away from Eastern Jin in 420, reigned as Emperor Wudi of Song 宋武帝
		 
		
		
														
		
		
			 
		
				
		
			liú yú 
		to change (for the worse)
		 
		
		
		
		
					
				
		
			Liú Yù 
		Liu Yu, founder of Song of the Southern dynasties 劉宋|刘宋[Liu2 Song4], broke away from Eastern Jin in 420, reigned as Emperor Wu of Song 宋武帝[Song4 Wu3 di4]