pang       
noun [ C ] uk/pæŋ/ us/pæŋ/
 一阵剧痛;(尤指)悲痛
a sudden sharp feeling, especially of painful emotion
  a pang of jealousy 一阵妒忌 
 We hadn't eaten since yesterday and the hunger pangs were getting harder to ignore. 我们从昨天起一直没有吃东西,饥饿引起的阵阵胃疼越来越难以忍受了。