noun 下载 🔗分享 失眠, 睡眠障碍 A sleeping disorder that is known for its symptoms of unrest and the inability to sleep. Examples : ""Stress from work can cause insomnia, making it hard to fall asleep at night." " 工作压力会导致失眠,让人晚上难以入睡。 medicine disease mind body physiology 与AI对话词汇游戏阅读练习