brisk /ˈbrɪsk/
  (a.)敏銳的,凜冽的,活潑的(vt.)使活潑(vi.)活躍起來
  Brisk a.
  1. Full of liveliness and activity; characterized by quickness of motion or action; lively; spirited; quick.
     Cheerily, boys; be brick awhile.   --Shak.
     Brisk toil alternating with ready ease.   --Wordworth.
  2. Full of spirit of life; effervesc░ng, as liquors; sparkling; as, brick cider.
  Syn: -- Active; lively; agile; alert; nimble; quick; sprightly; vivacious; gay; spirited; animated.
  Brisk v. t. & i. [imp. & p. p. Bricked p. pr. & vb. n. Bricking.] To make or become lively; to enliven; to animate; to take, or cause to take, an erect or bold attitude; -- usually with up.
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  brisk
       adj 1: quick and energetic; "a brisk walk in the park"; "a lively
              gait"; "a merry chase"; "traveling at a rattling
              rate"; "a snappy pace"; "a spanking breeze" [syn: lively,
               merry, rattling, snappy, spanking, zippy]
       2: imparting vitality and energy; "the bracing mountain air"
          [syn: bracing, energizing, energising, fresh, refreshing,
           refreshful, tonic]
       3: very active; "doing a brisk business"
       v : become brisk; "business brisked up" [syn: brisk up, brisken]