She glanced at me, smiled perfunctorily, and then returned her gaze to the television.她看了我一眼, 敷衍地笑了笑, 又继续盯着电视看。

She had thanked him perfunctorily.她漫不经心地向他道谢。

She answered his questions perfunctorily.她草草地回答了他的问题。

He glanced perfunctorily at its contents of the envelope.他草草地瞥了一眼信封上的内容。