pester       
verb [ T ] uk/ˈpes.tər/ us/ˈpes.tɚ/
 不断烦扰,纠缠
to behave in an annoying manner towards someone by doing or asking for something repeatedly
  At the frontier, there were people pestering tourists for cigarettes, food, or alcohol. 在边境,有人不断纠缠游客,索要香烟、食品或酒。 
 [ + to infinitive ] John has been pestering her to go out with him all month. 整个月以来,约翰一直缠着要和她约会。 
 Synonyms: annoybadger bug (ANNOY)