You use nor after a negative statement in order to introduce another negative statement which adds information to the previous one.
(用于否定句后,引出另一否定句以补充前句) 也不
She doesn't like them and nor does Jeff.
她不喜欢他们,杰夫也不喜欢。
Professor Hisamatsu spoke neither English nor German.
久松教授既不讲英语,也不讲德语。