constriction [kənˈstrɪkʃən]

例句:

• The pain is produced by constriction of the blood vessels.
  这种疼痛是由于血管的收缩而引起的。
  
• She feels a constriction in the chest.
  她胸部有压迫感.
  
• A general anxiousness developed and increased, leading to a constriction of her normal activities.
  一种普遍的焦虑情绪滋生出来并且不断加剧，导致她正常的活动都束手束脚。
  
• Nonvenomous snakes either swallow prey alive or kill by constriction.
  来自BBC
• They may also feel drowsy, with constriction of the pupils, slurred speech and impaired attention.
  来自BBC
• Release from fear is freedom from constriction, natural deep breathing occurs as well as clear thinking.
  来自SA