pic·nic /ˈpɪk(ˌ)nɪk/
  野餐;輕鬆愉快的事(vi.)去野餐
  Pic·nic n.  Formerly, an entertainment at which each person contributed some dish to a common table; now, an excursion or pleasure party in which the members partake of a collation or repast (usually in the open air, and from food carried by themselves).
  Pic·nic v. i. [imp. & p. p. Picnicked p. pr. & vb. n. Picnicking ] To go on a picnic, or pleasure excursion; to eat in public fashion.
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  picnic
       n 1: a day devoted to an outdoor social gathering [syn: field
            day, outing]
       2: any undertaking that is easy to do; "marketing this product
          will be no picnic" [syn: cinch, breeze, snap, duck
          soup, child's play, pushover, walkover, piece of
          cake]
       3: any informal meal eaten outside or on an excursion
       v : eat alfresco, in the open air; "We picnicked near the lake
           on this gorgeous Sunday"
       [also: picnicking, picnicked]