reliever
noun [ C ] uk/rɪˈliː.vər/ us/rɪˈliː.vɚ/
缓解痛苦的人；缓解物
something that makes something unpleasant less strong or less unpleasant
a pain/stress reliever 止疼药/缓解压力的事
a reliever of boredom 消除无聊情绪的事
（针对哮喘急性发作的）缓解类药物，支气管扩张剂
a drug used to treat acute (= sudden and bad) asthma (= a condition that makes breathing difficult)
Relievers work rapidly to open up airways and help breathing. 扩张剂能迅速打开气道，帮助呼吸。|确保您的孩子知道一定要随身带着支气管扩张剂吸入器。
Make sure your child knows to have their reliever inhaler with them at all times. 确保你的孩子知道要一直带着他们的缓解药物吸入器。
（棒球比赛中的）中继投手
in baseball, a pitcher (= a player who throws the ball to the player with the bat) who comes on to play instead of another pitcher
He pitched in 45 games, mostly as a reliever. 他作为投手参加了45场比赛，主要都是作为中继投手上场的。
- More examples
- For many, the pressure reliever of choice is alcohol.
- The body's own cortisone is a potent reliever of inflammation and pain.
- She felt she was just there for his amusement, as a reliever of boredom.
- Specific treatments for asthma are broadly classified as relievers, preventers and emergency treatment.
- Reliever Ray King was on the mound.