tranquillization

例句：

1. 1. The tranquility of nature is a welcome respite from the hustle and bustle of city life.
   大自然的宁静是城市生活的喧嚣和忙碌的避风港。
2. 2.Her soothing voice helped to calm his nerves before the big presentation.
   她在大演讲前的安抚话语帮助他平复了紧张的情绪。
3. 3.The tranquilizer had a calming effect on everyone present.
   镇静剂对在场的每个人产生了镇静效果。