exact

Compared meaning: correct or exact, without mistakes (adjective).

比较义项：正确、精确的（形容词）。

• exact 本词

  Exact emphasizes that something matches reality with no rounding or approximation, down to the smallest detail — often used with numbers, times, or amounts, and in the fixed phrase 'exact same'.

  exact强调与事实完全吻合，精确到最细微之处，不带任何四舍五入或大概；常与数字、时间、金额等搭配，也用于固定搭配“exact same”（一模一样）。

  We were both wearing the exact same shoes by coincidence.

  我们俩碰巧穿着一模一样的鞋子。

• right

  Right is the everyday word for correct, often about an answer, choice, or action, and can also mean morally proper or suitable for a situation — less formal than correct.

  right是日常口语中表示“正确”的词，常指答案、选择或行为，也可以表示道德上正当或适合某种场合；比correct更口语化，不太正式。

  This isn't the right time to bring it up.

  现在不是提这件事的合适时机。

• precise

  Precise stresses careful, detailed accuracy, especially in measurements, instructions, or descriptions, and is common in technical or scientific contexts rather than everyday speech.

  precise强调细致、周密的精确性，尤其用于测量、说明或描述，多出现在技术性或科学性语境中，而不是日常口语里。

  Scientists need precise data to predict the weather accurately.

  科学家需要精确的数据才能准确预测天气。

• correct

  Correct is more formal than right, focusing on facts, answers, spelling, or performance being free of mistakes, and is common in tests, grammar, and written contexts.

  correct比right更正式，侧重事实、答案、拼写或表现没有错误，常出现在考试、语法和书面语境中。

  Only two students gave the correct answer to the last question.

  只有两名学生给出了最后一道题的正确答案。

All four words mean correct, but the tone differs. Exact and precise stress complete accuracy in details, with precise sounding technical. Right and correct are more general; right is casual, correct is formal. Not compared: right's 'direction' sense, or correct meaning 'fix'.

这四个词在“正确、精确”这一意思上很接近，容易混淆，但语气和使用场合不同：exact和precise强调细节上完全精确，precise更偏技术、科学语境；right和correct泛指“正确”，其中right更口语化，correct更正式。这里不比较right的“方向”义（如turn right向右转）或“权利”义（如civil rights），也不比较correct用作动词“改正”的用法（如she corrected the mistake）。