n.随便，漫不经心...

Bayldon asked the question with studied casualness.贝尔顿故作轻松地问了那个问题。She introduced herself with studied casualness.她故作轻松地做了自我介绍。...

casualness的音标：casualness的英式发音音标为：['kæʒʊəlnəs]casualness的美式发音音标为：['kæʒʊəlnɪs]...