uptight       
adjective  informal uk/ˌʌpˈtaɪt/ us/ˌʌpˈtaɪt/
 紧张的;焦虑不安的
worried or nervous and not able to relax
  Don't get uptight about the exam - just do your best. 对待考试不要太紧张——尽力而为吧。 
 Synonyms: anal (MENTAL STATE) anally retentive high-strung highly strung jittery jumpy nervy restive