They can provide either a gentle nursery slope for experimentation and learning, prior to the red runs of AspectJ, or a highly productive work environment in their own right.

它们为闯向AspectJ这座红灯之前的实验和学习提供了一个缓和的练习坡地，而且也依靠它们自己能力提供了一个高生产率的工作环境。