不论你是在家或去俱乐部举重都要小心，把哑铃砸在脚上或拉伤肌肉可不是愉快的经验。
Whether you lift weights at home or at a club, be careful. Dropping a weight on your foot or tearing a muscle is not a pleasant experience.
当受伤组织周围有炎症时，人体试图稳定受伤部位，使颈部肌肉痉挛，也会伴随出现颈部肌肉扭伤或拉伤。
Muscle strain in the neck can also be accompanied by inflammation around the injured tissue, and neck muscle spasms as the body tries to stabilize the injury.
下山时不要走得太快，更不能奔跑，否则会使肌肉感受过重的张力，而使膝关节受伤或肌肉拉伤。
Do not walk too quickly, still less than running when go down the hill, or the knee joint or the muscle will get injured because the muscle feel too much pulling force.
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