Daily Chinese Idiom Guessing Game
To be meticulous and scrupulous about every detail; not to be the least bit negligent.
苟苟且，马虎。指做事认真细致，一点儿不马虎。
清·吴敬梓《儒林外史》第四回上司访知，见世叔一丝不苟，升迁就在指日。”
She is meticulous in her work, checking every detail with a一丝不苟 attitude.