re·tal·i·ate /rɪˈtæliˌet/
 (vt.)報復,報仇,回敬(vi.)報復,以牙還牙,徵收報復性關稅
 Re·tal·i·ate, v. i. To return like for like; specifically, to return evil for evil; as, to retaliate upon an enemy.
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 Re·tal·i·ate v. t. [imp. & p. p. Retaliated p. pr. & vb. n. Retaliating.]  To return the like for; to repay or requite by an act of the same kind; to return evil for (evil). [Now seldom used except in a bad sense.]
    One ambassador sent word to the duke's son that his visit should be retaliated.   --Sir T. Herbert.
    It is unlucky to be obliged to retaliate the injuries of authors, whose works are so soon forgotten that we are in danger of appearing the first aggressors.   --Swift.
 retaliate
      v 1: take revenge for a perceived wrong; "He wants to avenge the
           murder of his brother" [syn: revenge, avenge]
      2: make a counterattack and return like for like, especially
         evil for evil; "The Empire strikes back"; "The Giants
         struck back and won the opener"; "The Israeli army
         retaliated for the Hamas bombing" [syn: strike back]