英语中一个句子里,一个单词可以同时有两种词性吗?比如既是介词又是...答:1. 连词性副词,如moreover, however, consequently, thus, hence, nevertheless, accordingly, indeed, in fact。它们既起连词的作用把两个独立句子连在一起,又在第二句中作状语。例如:I haven't called him yet; however, I don't mind if you do.The house is a mess; moreover, the ...