young at heart 汉语意思： 心态年轻 童心未泯 精神年轻 例句： Even at 80, he's still young at heart and loves adventure. 即使80岁了，他依然心态年轻，热爱冒险。 My grandmother is young at heart and loves trying new technologies. 我奶奶心态很年轻，喜欢尝试新技术。