noun 下载 🔗分享 兴奋剂,刺激物 Something that excites or stimulates; a stimulant Examples : "Coffee and energy drinks are common excitants that many people use to stay awake during the day. " 咖啡和能量饮料是常见的刺激物,许多人靠它们在白天保持清醒。 medicine physiology substance body 与AI对话词汇游戏阅读练习