团购网站:group-buying websites

　　风投:venture capital

　　低进入门槛:low entry threshold

　　占据绝对份额:dominate the market

　　销售量:sales volume

　　实现盈利:achieve profitability

　　佣金:commission

　　电子商务:e-commerce

　　点击率:click-through rate

　　裁员:trim the workforce