销售 → ☊ xiao1shou4 
to sell; to market; sales (representative, agreement etc) ☊ 
Bán hàng ☊ 市场 ☊ → 集市 ☊ → 行情 ☊ → 
market 市场学 ☊ → 营销学 ☊ → 销售学 ☊ → marketing 卖 ☊ → 销售 ☊ → ☊ → sale