本人认为这里的although相当于一个并列连词,相当于''however,but,"可以翻译成''但是''
与后面的句子中间插入了状语,故用逗号隔开。
再如:He is poor-- although he is well contented. 他很穷,然而却能知足常乐。 The price increase will obviously be unpopular although it’s unlikely to reduce demand. 价格升高显然会不受人欢迎,然而这不大可能会降低人们的需求。