pro re nata

英 美
  • [拉]临机应变,(=foranunexpectedcontingency)为意外事件
  • NATA n.北美电信协会
  • pro n.能手;行家;正面adj.专业的;赞成的adv.正面地prep.赞成
  • re prep.关于pref.再,重新n.长音阶的第二音
Adverb:
  1. according to need (physicians use PRN in writing prescriptions);

    "add water as needed"