英语语法分析

Why don't the laggards catch up?

为什么落后者不赶上？

Or the laggards may be cooking up some biochemical nest protection.

或是调制用来保护巢穴的生化制品。

Nine states are well below the group average; these laggards include America.

九个国家，包括美国，指标低于平均线。