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Mules have strong muscles like horses; but they eat less, can work longer, and are gentler, like donkeys.
出自-2017年6月听力原文
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They were taught that the brain is like a muscle that gets stronger with use and that learning prompts the brain to grow new connections.
出自-2016年12月阅读原文
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Its purpose is to build and maintain bone and muscle mass, both of which shrink with age.
出自-2013年6月阅读原文
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The result of constant muscle tension and stiffness of joints, many of them are avoidable, and simple flexibility training can prevent these by making muscles stronger and keeping joints lubricated (润滑 )
出自-2013年6月阅读原文
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The result of constant muscle tension and stiffness of joints, many of them are avoidable, and simple flexibility training can prevent these by making muscles stronger and keeping joints lubricated (润滑 ).
出自-2013年6月阅读原文
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As muscle soreness develops, the body has to work to repair the muscle tears, but this doesn't happen immediately.
2019年12月四级真题（第一套）听力 Section C
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I really want to lose some of these belly fat and turn it into muscle, but I'm not sure which of the gym equipment would best help.
2018年6月四级真题（第一套）听力 Section B
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Muscle performance can also be affected by a phenomenon called "central fatigue", in which an imbalance in the body's chemical messengers prevents the central nervous system from directing muscle movements effectively.
2017年6月四级真题（第三套）阅读 Section A
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That's why there is most often a delay associated with muscle soreness.
2019年12月四级真题（第一套）听力 Section C
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They were taught that the brain is like a muscle that gets stronger with use and that learning prompts the brain to grow new connections.
2016年12月四级真题（第二套）阅读 Section B
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Unfortunately, there is little that can be down to relieve muscle soreness.
2019年12月四级真题（第一套）听力 Section C
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When the body realizes the muscles are hurt, the response is to increase blood flow to the area and increase body heat, damaged cells are then cleaned up and the body sends cells specially designed to break down the large muscle fiber fragments.
2019年12月四级真题（第一套）听力 Section C