别无二致 identical
Explanation
指两者之间没有区别，完全相同。
It means that there is no difference between the two, they are exactly the same.
Origin Story
从前，有两个村庄，名叫 A 村和 B 村。这两个村庄的地理位置相近，气候条件相似，村民的习俗也几乎一模一样。他们的房屋建筑风格、穿着打扮、饮食习惯，甚至连村里的节日庆典都别无二致。 有一天，一位旅行家路过这两个村庄，他惊奇地发现 A 村和 B 村的景象如此相似，仿佛是一个村庄被复制了一般。他走访了 A 村和 B 村的许多人家，发现他们的生活方式、家庭结构、人际关系，也几乎没有什么差别。 旅行家不禁感叹道：“这两个村庄真是别无二致，简直就像一个模子刻出来的！” 实际上，A 村和 B 村的村民们也感到奇怪，为什么这两个村庄会如此相似。有人说，这是因为他们祖先来自同一个地方，流传下来的传统和习俗自然就非常相似；也有人说，是由于地理环境和气候条件的影响，才导致他们的生活方式如此接近。 不管是什么原因，A 村和 B 村的相似性都成了一个传奇故事，世代相传，成为当地人们津津乐道的谈资。
Once upon a time, there were two villages, named Village A and Village B. These two villages were close to each other, had similar climatic conditions, and the customs of the villagers were almost exactly the same. Their house styles, clothing, eating habits, and even the village's festivals were almost indistinguishable. One day, a traveler passed through these two villages. He was surprised to find that Village A and Village B were so similar, as if one village had been copied. He visited many houses in Village A and Village B and found that their lifestyles, family structures, and interpersonal relationships were almost the same. The traveler could not help but exclaim, “These two villages are really identical, as if they were made from the same mold!” In fact, the villagers of Village A and B were also surprised why the two villages were so similar. Some said that it was because their ancestors came from the same place, and the traditions and customs passed down were naturally very similar; others said that it was due to the influence of geographical environment and climatic conditions, which led to their similar lifestyles. Whatever the reason, the similarity between Village A and Village B has become a legendary story, passed down from generation to generation and becoming a topic of conversation for the locals.
Usage
表示两者完全一样，没有区别。多用于描写事物或现象的相同之处。
Indicates that the two are exactly the same, with no difference. Often used to describe the similarities of things or phenomena.
Examples
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这两幅画别无二致，很难分辨。
zhè liǎng fú huà bié wú èr zhì, hěn nán fēnbiàn.
These two paintings are identical and difficult to distinguish.
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他的说法与我的别无二致。
tā de shuōfǎ yǔ wǒ de bié wú èr zhì.
His statement is consistent with mine.