Which of these words sounds different

Which of these words sounds different


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English translation
1.2.2. Fuzziness
English abbreviations are based on letters, which only have sound and shape, but have no meaning, so they are abbreviated. After combination, the relationship among sound, shape and meaning of words becomes very loose, not as close as a complete word or phrase. For example, APC can be American power conference, adjustable pressure conveyor or automatic Power control, automatic program control or automatic phasecontrol. The rules of abbreviation phrases are not fixed, and the influence of human factors is great. For example, people tend to make the abbreviated words easy to recognize and remember, and the choice or arrangement of letters depends on habits, which adds a certain degree of fuzziness to abbreviations


1.2.2. Fuzzy English abbreviations are based on letters. Letters only have sound and form, and have no meaning, so they are abbreviated. After combination, the relationship among sound, form and meaning of words becomes very loose, not as close as a complete word or phrase. For example, APC can be American Power Conference