The power of the allies aggregated together was great, though individually some were quite weak. 请问老师individually这里是什么成分，怎么样理解。

副词individually为下加状语中的看法下加状语。等于so far as the individual is concerned. 假如你不熟知下加状语，简单地剖析为副词作状语即可。你了解意思就好了，不必为句子成分烦恼。一根筷子比较容易折断，一把筷子你就折不断了。句子无非表示的就是这种意思。