俺的减肥方案还没完全策划好，现成的草案是每天跳1000下绳加一定的扭腰运动。减肥时间占一席后那就说现在起上网的时间又少了。

I haven't worked my plan out fully yet, but I will do 1000 skipping jumps each day to start with, maybe some waist exercises.

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比如，举一个沉重的物体，当举重物时扭腰，摔倒，或一些运动可引起腰部肌肉扭伤。

For example, lifting a heavy object, twisting while lifting, falling, or some sports could cause lumbar muscle strain.

youdao