选择那些轻松举上15到20次却并不会让你精疲力竭的哑铃,会让你更结实有力同时不会产生大块的肌肉。
Use weights that you can easily lift 15 to 20 times before starting to feel exhausted. This will tone and strengthen your body without building bulk.
选择那些轻松举上15到20次却并不会让你精疲力竭的哑铃,会让你更结实有力同时不会产生大块的肌肉。
Use weights that you can easily lift 15 to 20 times before starting to feel exhausted. This will tone and strengthen your body without building bulk.
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