sunniness
🇬🇧/ˈsʌninəs/ 🇺🇸/ˈsʌninɪs/the quality of being bright and cheerful, or exposed to sunlight.
noun [抽象名词] 阳光照射,阳光充足;活泼
He had a sunniness of disposition that delighted us all. 他性情愉快,使我们大家都快乐.
He had a sunniness of disposition that delighted us all. 他性情愉快,使我们大家都快乐.