divagate
vi. (文章或谈话)离题；漂泊
名词：divagation 过去式：divagated 过去分词：divagated 现在分词：divagating 第三人称单数：divagates
近义词：digress，stray，wander，
英英释义
Verb
- lose clarity or turn aside especially from the main subject of attention or course of argument in writing, thinking, or speaking;
"She always digresses when telling a story" "her mind wanders" "Don't digress when you give a lecture"