有一读者问： 有这样一个句子：
But here the teacher and her pupils were doing just that, although the Russians had spies everywhere in Warsaw.
句中的but与although为何连用？
这里的but（表示转折）只与前文有关，而和其后的although并没有直接的关系。注意although之前有一逗号，说明although从句在此只是一添补之词。这种添补的词之前常有逗号，不可用于句首。又不可在句中看到有although和but二词，即认为是错误的。
