divagation
 流浪;入岐途;逸出
 Di·va·ga·tion n.  A wandering about or going astray; digression.
    Let us be set down at Queen's Crawley without further divagation.   --Thackeray.
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 divagation
      n 1: a message that departs from the main subject [syn: digression,
            aside, excursus, parenthesis]
      2: a turning aside (of your course or attention or concern); "a
         diversion from the main highway"; "a digression into
         irrelevant details"; "a deflection from his goal" [syn: diversion,
          deviation, digression, deflection, deflexion]