playfulness

/ˈpleɪflnəs/
📚 21060
the quality of being light-hearted or full of fun. "images of childlike innocence and playfulness"

noun [专属名词] 玩笑;嬉闹

Many species have evolved clear signals to delineate playfulness. 很多动物进化出了明确表述玩耍的信号。

后缀: ness 【noun】 表示状态或质量的性质 - indicating the state or quality of 原词: playfulness 是通过后缀 【ness】 构成的派生词
单词造句: