differ

Compared meaning: have a different opinion (verb).

比较义项：（观点、意见）不同，有分歧（动词）。

• disagree

  General, everyday word for having a different opinion from another person; neutral register, commonly followed by 'with someone' or 'on/about a topic'.

  普通、日常用词，表示与别人观点不同；语气中性，常与“with someone”或“on/about a topic”搭配使用。

  We disagree on almost everything, but our friendship survives.

  我们几乎在所有事情上都意见不同，但我们的友谊依然长存。

• differ 本词

  More formal and neutral way to say views or opinions are not the same; often has 'opinions' or 'views' as the subject rather than a person, with less confrontational tone than disagree.

  较为正式、中性的说法，表示观点不同；主语常是“观点”或“看法”本身而非人，语气不如disagree那样带有对立感。

  Their views on climate policy differ sharply, though they're both scientists.

  他们在气候政策上的看法差异很大，尽管两人都是科学家。

• dissent

  Formal and strong; means to openly disagree with an official ruling, policy, or majority/popular opinion, often in political, legal, or organizational contexts.

  语气正式、强烈，指公开反对官方裁决、政策或多数人（大众）意见，常用于政治、法律或组织场合。

  One senator publicly dissented from the party's official position on the bill.

  一位参议员公开对该党在这项法案上的官方立场表示异议。

All three mean to have a different opinion. Disagree is common and neutral. Differ is more formal, often with 'opinions' as the subject, less confrontational. Dissent is strongest, meaning to openly oppose an official ruling or majority opinion, often in politics or law.

这三个词都可以表示对某事持有不同或相反的看法，但语气强弱和使用场合不同：disagree 语气中性，日常口语中最常用；differ 更正式、更客观，常以“观点”或“看法”作主语，不强调对立情绪；dissent 语气最正式、最强烈，专指公开反对官方裁决或大众意见，多用于政治、法律等场合。