tōng shāng 
		having trading relations (of nations or regions)
		 
		
		
		
		
			 
		
				
		
			tōng shāng kǒu àn 
		treaty port, forced on Qing China by the 19th century Great Powers
		 
		
		
														
		
		
			 
		
				
		
			wǔ kǒu tōng shāng 
		the five treaty ports forced on Qing China by the 1842 treaty of Nanjing 南京條約|南京条约 that concluded the First Opium War, namely: Guangzhou 廣州|广州, Fuzhou 福州, Ningbo 寧波|宁波, Xiamen or Amoy 廈門|厦门 and Shanghai 上海