一丝不苟[yī sī bù gǒu]
一丝不苟什么意思
be strict in one's demands; be conscientious and meticulous; be scrupulous about every detail; meticulously attentive; dot the i's and cross the t's; methodistic; neglect no detail; not to be the least bit negligent; thorough; (work) in a careful and thoro