dog·ged /ˈdɔgəd/
 (a.)頑固的,頑強的
 Dog v. t. [imp. & p. p. Dogged p. pr. & vb. n. Dogging.] To hunt or track like a hound; to follow insidiously or indefatigably; to chase with a dog or dogs; to worry, as if by dogs; to hound with importunity.
    I have been pursued, dogged, and waylaid.   -- Pope.
    Your sins will dog you, pursue you.   --Burroughs.
    Eager ill-bred petitioners, who do not so properly supplicate as hunt the person whom they address to, dogging him from place to place, till they even extort an answer to their rude requests.   -- South.
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 Dog·ged a.
 1. Sullen; morose. [Obs. or R.]
    The sulky spite of a temper naturally dogged.   -- Sir W. Scott.
 2. Sullenly obstinate; obstinately determined or persistent; as, dogged resolution; dogged work; dogged pursuit.
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 dog
      n 1: a member of the genus Canis (probably descended from the
           common wolf) that has been domesticated by man since
           prehistoric times; occurs in many breeds; "the dog
           barked all night" [syn: domestic dog, Canis
           familiaris]
      2: a dull unattractive unpleasant girl or woman; "she got a
         reputation as a frump"; "she's a real dog" [syn: frump]
      3: informal term for a man; "you lucky dog"
      4: someone who is morally reprehensible; "you dirty dog" [syn:
         cad, bounder, blackguard, hound, heel]
      5: a smooth-textured sausage of minced beef or pork usually
         smoked; often served on a bread roll [syn: frank, frankfurter,
          hotdog, hot dog, wiener, wienerwurst, weenie]
      6: a hinged catch that fits into a notch of a ratchet to move a
         wheel forward or prevent it from moving backward [syn: pawl,
          detent, click]
      7: metal supports for logs in a fireplace; "the andirons were
         too hot to touch" [syn: andiron, firedog, dog-iron]
      v : go after with the intent to catch; "The policeman chased the
          mugger down the alley"; "the dog chased the rabbit" [syn:
           chase, chase after, trail, tail, tag, give
          chase, go after, track]
      [also: dogging, dogged]
 dogged
      adj : stubbornly unyielding; "dogged persistence"; "dour
            determination"; "the most vocal and pertinacious of all
            the critics"; "a mind not gifted to discover truth but
            tenacious to hold it"- T.S.Eliot; "men tenacious of
            opinion" [syn: bulldog, dour, pertinacious, tenacious,
             unyielding]
 dogged
      See dog