expertness

/'ekspɚtnɪs/
skillfulness by virtue of possessing special knowledge

noun [抽象名词] 专门性;专业性

The expertness of her driving surprised him. 她驾驶技术熟练,他感到很惊奇。

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

n.专门性

单词造句: