punctilious [pʌŋkˈtɪliəs]

以下由轻松背单词网站提供

adj.谨慎的，谨小慎微的；一丝不苟的

very careful to behave correctly or to give attention to details

He was a punctilious young man. 他是个非常拘礼的年轻人。
Billy is punctilious in the performance of his duties. 毕利执行任务总是一丝不苟的。