“酸”怎么翻译？
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Muscle pain or muscle soreness
** Delayed onset muscle soreness (DOMS), also called muscle fever, is the pain and stiffness felt in muscles several hours to days after unaccustomed or strenuous exercise. The soreness is felt most strongly 24 to 72 hours after the exercise.
http://en.wikipedia.org/wiki/Delayed_onset_muscle_soreness
** Muscle pain (myalgia) can range from mild to excruciating, and though it often goes away in a few days, some muscle pain can linger for months.
Muscle pain can develop almost anywhere in your body, including your neck, back, legs and even your hands. Although it's usually localized to one or a few muscles, it may be more widespread.
