yí nán 
		hard to understand
difficult to deal with
knotty
complicated
		 
		
		
														
		
		
			 
		
				
		
			Yí nán 
		Yi'nan county in Linyi 臨沂|临沂[Lin2 yi2], Shandong
		 
		
		
														
		
		
					
				
		
			Yí nán xiàn 
		Yi'nan county in Linyi 臨沂|临沂[Lin2 yi2], Shandong
		 
		
		
														
		
		
			 
		
				
		
			nán jīng 
		Canon of difficult questions, medical text, c. first century AD
abbr. for 黃帝八十一難經|黄帝八十一难经[Huáng dì bā shí yī nán jīng]
		 
		
		
		
		
			 
		
				
		
			yì nán 
		males eligible for military service
draftee
abbr. for 役齡男子|役龄男子