動詞 dog:

1. go after with the intent to catch
   同義詞：chase, chase after, trail, tail, tag, give chase, dog, go after, track

形容詞 dogged:

1. stubbornly unyielding
   同義詞：dour, pertinacious, tenacious, unyielding

1. He's been dogged by failure in the past year; now he is working strenuously to pull out.
   過去一年中他連續(xù)遭到失敗; 現(xiàn)在他在努力設法擺脫這種局面。
2. All the time he was in the city the secret police dogged his steps.
   他在該市逗留期間一直受到秘密警察的跟蹤。
3. Although he's less talented, he won by sheer dogged persistence.
   他雖天賦不高，但全憑堅韌的毅力贏得了勝利。
4. They had a dogged defense of the city.
   他們對城市進行了頑強的防守。

dog.ged

adj.（形容詞）
Stubbornly persevering; tenacious.See Synonyms at obstinate
頑強的；固執(zhí)的參見 obstinate

【引伸】
dog.gedly
adv.（副詞）
dog.gedness
n.（名詞）