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Your heart muscle does something truly incredibleit expands and contracts, non-stop, every moment of every day of your entire life. By comparison, if you tried to squeeze and release the muscles in your hand, they would grow fatigued and need to rest
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今天我们要学的词组是flex one's muscles。 Flex是伸屈的意思， muscle是肌肉，flex one's muscles是一个习惯用语。意思是显示力量，展示能力。 美国加州州长施瓦辛格宣布了一项环保计划， 要求把加州
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All you remember about your child being seven is the carpool schedule. You learned to apply makeup in two minutes and brush your teeth in the rearview mirror , because the only time you had to yourself was when you were stopped at red lights. You con
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物理康复机器人帮助治疗肌肉损伤 Recovering strength and flexibility after an injury often involves physical therapy. 受伤后力量和柔韧性的恢复通常需要进行物理治疗。 Exercising muscles that may have atrophied is an
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A flying robot piloted by brainwaves is just one of the ingenious new devices coming out of a top US university. Students are showing off their latest creations at the Maryland Robotics Day including the Neuro Sky Mindset and a snake-inspired search-
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