不厌其详 not tired of details
Explanation
指不嫌详细，越详细越好。形容对某事非常关注或认真，愿意听或看完整的细节。
Means not being afraid of details. It emphasizes the desire to look at something very carefully and in detail.
Origin Story
唐代诗人白居易，以写诗平易通俗著称，尤其以其作品“长恨歌”最为人称道。然而，白居易为了写好这首诗，可谓是煞费苦心。他不仅翻阅了大量的史料，还多次到长安城实地考察，询问了许多老百姓，并将这些信息记录下来。为了让诗歌更加生动形象，他还刻意模仿唐玄宗和杨贵妃的口吻，将他们的爱情故事写得淋漓尽致。白居易这种不厌其详的态度，让“长恨歌”成为了一部流传千古的爱情史诗。
Bai Juyi, a poet of the Tang dynasty, was famous for writing simple and easy-to-understand poems, especially his work "Long Hate Song." However, Bai Juyi went to great lengths to write this poem. He not only read a large number of historical materials, but also visited Chang'an City several times to conduct field research and interviewed many local people. He recorded all this information. To make the poem more vivid and expressive, he deliberately imitated the tone of Tang Xuanzong and Yang Guifei, writing their love story in vivid detail. Bai Juyi's attitude of not being afraid of details made "Long Hate Song" an epic of love that has been passed down through the ages.
Usage
这个成语通常用于形容一个人对某事非常认真，愿意听或看完整的细节。例如，老师在讲解知识的时候，为了让学生更好地理解，会不厌其详地进行讲解。
This idiom is often used to describe someone who is very serious about something and willing to listen or watch the full details. For example, when a teacher explains knowledge, he will explain it in detail to help students understand better.
Examples
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为了弄清事情真相，她不厌其详地向我讲述了整个事件的经过。
wei le nong qing shi qing zhen xiang, ta bu yan qi xiang di xiang wo jian shu le zheng ge shi jian de jing guo.
In order to clarify the truth, she told me about the whole incident in detail.
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老师不厌其详地讲解这道数学题，直到所有同学都明白为止。
lao shi bu yan qi xiang di jian jie zhe dao shu xue ti, zhi dao suo you tong xue dou ming bai wei zhi.
The teacher explained the math problem in detail until all the students understood it.