quadr-,四，-cep,头，词源同captain,cap.引申词义四头肌。

1. They point out , however, that strengthening the quadriceps could prevent further damage.

不过,他们确知的事是, 加强大腿股四头肌的力量,可减低关节进一步受损的机会.

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2. Lunges are also an excellent exercise for maintaining quadriceps and hamstring strength.

弓步也是维持股四头肌和腿筋力量的一种好练习.

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3. It is a very good exercise machine for keeping your quadriceps strong after surgery.

它是一部在术后保持股四头肌强壮的非常好的练习机器.

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4. To strengthen weak knees, the quadriceps group of muscles need to be strengthened.

只有股四头肌被加强的时候虚弱的膝关节才能得到加强.

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5. The Biceps muscle of the thigh Bends the leg; the quadriceps straightens it.

两足动物股部的肌肉使腿弯曲, 四头肌则将腿拉直.

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