businessware商业件businessn.商业；事务；生意business associates业务伙伴businesslike adj.事务性的；有条理的；有效率的business competitor生意竞争对手; 商场对手business evaluation商务性评审business population在业人口business commission实业考察团business enterprise企业business incubators企业孵化器business consulting企业诊断business components业务组件

1. Do you know what a stateless business layer is?
   是否了解什么是无状态的业务层？
2. One of the most complex issues in application planning is the necessary separation between business and implementation tiers.
   应用程序规划中最复杂的问题之一是业务层和实现层之间的必要分隔。