Question

di1ng shi4 di1ng,ma3o shi4 ma3o(1)[be conscientious and meticulous;be accurate in what one says;be fastidiously accurate] 丁、卯分别是天干、地支之一,不能相混,错乱了影响记时。形容做事认真,一丝不苟凤姐笑道:“我看你厉害,明儿有了事,我也是丁是丁,卯是卯的,你也别抱怨。――《红楼梦》(2)也作“钉是钉,铆是铆”