extension
英 [ɪk'stenʃ(ə)n; ek-]
美[ɪk'stɛnʃən]
- n. 延长；延期；扩大；伸展；电话分机
词组搭配
by extension
taking the same line of argument further
乃至，甚至于
the study shows how television and, by extension, the media, alter political relationships.
这项研究表明电视，乃至媒体是如何改变政治关系的。