"down to the last detail" in Chinese (Simplified)
事无巨细
Definition
如果你做事做到“事无巨细”，就是指你非常仔细，确保每个细节都做到位，没有遗漏。
Usage Notes (Chinese (Simplified))
常用来强调做事非常细致、彻底。多用于工作、策划、设计等场合，表达正面意思，但有时也可暗示过度追求完美。
Examples
The wedding was planned down to the last detail.
婚礼被安排得**事无巨细**。
She organized the party down to the last detail.
她把聚会安排得**事无巨细**。
The instructions explain everything down to the last detail.
说明书把一切都解释得**事无巨细**。
He checked his report down to the last detail before submitting it.
他在提交前把报告**事无巨细**地检查了一遍。
Our trip itinerary was organized down to the last detail—nothing was left to chance.
我们的旅行行程**事无巨细**地安排好——没有留下一点侥幸。
She knew her business plan down to the last detail, impressing everyone in the meeting.
她对自己的商业计划**事无巨细**，让会议上的每个人都印象深刻。