Human go today, we first is directly bartering, industrial economy, a lot of the intermediate link, we have today a commodity from the factory to the consumer, 80% of the cost is hand channel cost.
人类走到今天，我们一开始是直接物交换，工业经济，大量的中间环节产生，我们今天一件商品从工厂到消费者手里，80%的成本是渠道成本。
youdao