tus·sle /ˈtʌsəl/
  扭打,鬥爭,論爭(vi.)扭打,打鬥
  Tus·sle v. i. & t.  To struggle, as in sport; to scuffle; to struggle with. [Colloq.]
  Tus·sle, n. A struggle; a scuffle. [Colloq.]
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  tussle
       n : disorderly fighting [syn: hassle, scuffle, dogfingt, rough-and-tumble]
       v 1: fight or struggle in a confused way at close quarters; "the
            drunken men started to scuffle" [syn: scuffle]
       2: make messy or untidy; "the child mussed up my hair" [syn: muss]