lengthy
/ˈleŋθi/You use lengthy to describe an event or process which lasts for a long time. 漫长的
adjective [原级] 漫长的，长时间的；（讲话、文章等）冗长的，过于详尽的
A lengthy report, article, book, or document contains a lot of speech, writing, or other material. 冗长的
