Someone who is punctilious is very careful to behave correctly.
例句
He was punctilious about being ready and waiting in the entrance hall exactly on time...他一丝不苟地作好准备并准时地在门厅等候。He was a punctilious young man.他是个非常拘礼的年轻人。
英汉词典释义
adj.
谨小慎微的,拘泥形式的
The more unpopular an opinion is, the more necessary is it that the holder should be somewhat punctilious in his observance of conventionalities generally.一个观点越不受欢迎,这个观点的持有者越应谨小慎微地观察习俗惯例。
adv.
英英词典释义
Adjective
1. marked by precise accordance with details;
"was worryingly meticulous about trivial details""punctilious in his attention to rules of etiquette"