microblog
noun [ C ] uk/ˈmaɪ.krəˌblɒɡ/ us/ˈmaɪ.kroʊˌblɑːɡ/
微博客
a blog in the form of a short message for anyone to read, sent especially from a mobile phone
Microblogs, for example on Twitter, can be for anything from "what I'm doing now" to coverage of serious political events. 以推特为例，微博客可以用来说“我现在在干什么”，也可以覆盖严肃的政治事件。