Instead, he says that pterosaurs needed all four limbs for liftoff.
他说翼龙需要使用它们所有的四肢来起飞。
Thousand. 2005 one day of night, detected suddenly oneself four limbs are incapable.
2005年的一天夜里，突然发觉自己四肢无力。
Mobility system: no deformation of four limbs, no red swelling of joint. Free movement.
运动系统；四肢正畸形，关节无红肿，活动自如。
After standing in the chilly wind for too much time, the captain felt stiff in four limbs.
船长站在寒风里太长时间，以至于感到四肢僵硬。
The question, then: Why stand and walk on two legs when our ape Cousins get by on four limbs?
问题就随之而来了：为什么在我们的类人猿亲戚们还在用四肢行走的时候，我们就已经直立并用两足行走呢？
Helicopters are notoriously hard to fly because a control exists for each of the pilot's four limbs.
众所周知直升飞机很难飞起来，是因为飞机员的四肢都有操纵装置。
Swimminging in a summer pond, we notice how natural it is to use all four limbs to travel along.
夏日在池塘里游泳，四肢击水前进，感觉非常自然。
Objective Studies on the efficient measurements of movement range of the joints of the four limbs.
目的研究有效的四肢关节活动度的测量方法。
Opening eyes and stretching four limbs, people discover the varicolored world and feel curious inside.
世人睁开眼睛，伸出四肢，发现了眼前这个五彩缤纷的花花世界，他们的内心是充满着好奇的。
And the chimps, on average, use as much energy using two legs as they did when they used all four limbs.
平均来看，大猩猩两条腿行走时消耗的能量与四肢着地行走时的差不多。
Sports make you keep agility of four limbs and no pain, and you can have strong muscle and walk easily.
运动使你使你四肢灵活，无疼痛，使肌肉、皮肤富有弹性，走路轻松。
It is best to dress your baby with a thin and close-fitting one-piece, uncovering his or her four limbs;
拍摄当天最好给小宝宝穿一件薄而贴身的连体衣，以露出胳膊和腿最好；
IntroductionThe long tube bone fracture of four limbs is the most common damage in the wound orthopedics.
引言四肢长管状骨骨折是创伤骨科最常见及最多发的损伤。
By 375m years ago, the descendants of these first-footers had evolved four limbs clearly recognisable as legs.
大约3亿7千5百万年前，第一批鱼类类“登陆者”的后代进化出了四肢（可以清晰的看出来是腿）。
The electrophysiological tests included check of nerve conduct function of both sensation and motor at four limbs.
神经肌电检查包括四肢感觉和运动神经传导功能，肌电图记录上下肢远端肌肉各1块。
Instead, he says a pterosaur used all four limbs, leapfrogging forward on its knuckles, to propel itself into the air.
相反，他说翼龙使用它所有的四肢向前跑动，从而使自己飞到空中。
"Instead of walking on two feet, using our four limbs and moving from place to place, like a dog, is good exercise," Pu says.
濮存昕说：“要四肢着地，而不仅仅是双脚，然后像小狗一样一步一步往前爬，这是很有效的健身方式。”
So we can affirm that human beings have ever evolved, but they had never crept with four limbs on the ground like those beasts.
因此我们可以断言：人类曾经进化过，但是从来没有像其他野兽那样在地上用四肢爬行过。
In the newest PNAS study, scientists examined a remarkable fossil specimen that had feathers on all four limbs, somewhat resembling a bi-plane.
在这项最新的发表在PNAS上的研究中，科学家仔细考察了一块奇特的化石标本“小盗龙”（mircoraptor），这块化石上的四肢全部都有羽毛，有点类似两栖飞机（bi-plane）。
At one year old, he suffered from an unknown incurable disease. Two surgeries took away the necrotic parts of his four limbs, both ears and his tail.
一岁时，太郎得了原因不明的难治之症，在经历了两次手术治疗后，共切除了一对耳朵、四只脚和尾巴的坏死部分。
Minh, with long lashes, hazel eyes, a few freckles and a handsome Caucasian face, moved like a crab on all four limbs, likely the result of polio.
明，长长的睫毛，淡褐色的眼睛，几颗雀斑和一张英俊的白种人的脸，像螃蟹一样四肢爬行，那可能是患小儿麻痹症的结果。
As I drove across Minnesota, I began to wonder how the woman I was about to meet could cope with such devastating news that all four limbs had to be amputated.
当我驾车穿越明尼苏达州的时候，我不由得想知道我将要采访的那位女士在得知四肢都要被截掉的时候是如何来应对这一灾难性消息的。
But a true health baby, besides facial expression ruddy, four limbs whether solid, sense organ consciousness is whether flexible, also is must pay attention oh!
可是一个真正健康的宝宝，除了气色红润外，四肢是否结实、感官知觉是否灵活，也是要注意的唷！
Thee first four limbs—Yama, Niyama, Asana and Pranayama—are considered external cleansing practices. And next four is considered as internal cleansing practices.
首先的四支被视为外在的清洁练习。余下的四支则视为内在的清洁练习。銮。
Objective to avoid or decrease complications by probing the standard utilization and nursing of air tourniquet in four limbs operations at primary level hospital.
目的探讨气压止血带在基层医院四肢骨科手术中的规范应用及护理，从而避免或减少并发症的发生。
Objective to avoid or decrease complications by probing the standard utilization and nursing of air tourniquet in four limbs operations at primary level hospital.
目的探讨气压止血带在基层医院四肢骨科手术中的规范应用及护理，从而避免或减少并发症的发生。
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