Xìnggāocháo shì xìngxíngwéi de zìrán shēnglǐ fǎnyìng.
Orgasm is a natural physiological response to sexual activity.
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性高潮 is the standard clinical and scientific term for orgasm. It is not vulgar — it appears in medical and educational texts. The colloquial equivalent 高潮 can mean climax in both sexual and non-sexual senses (e.g. the climax of a movie).
