Suddenly the cow kicked up its hind legs.
突然奶牛踢起了后腿。
A goat was standing up against a tree on its hind legs, trying to get at the leaves.
一只山羊后腿趴在一棵树上站起来，试图去够树叶。
Snake embryos, for example, sprout hind limb buds.
例如，蛇的胚胎会生长出后肢。
The large hind legs were used for propulsion in water.
巨大的后肢用于在水中驱动。
Other species sport up to four toes on their hind legs.
其他的种类则彰显出了后肢的四个趾头。
The fossil luckily includes a good portion of the hind legs.
很幸运，化石包含了一大部分后腿。
A magnificent Poodle appeared, walking on his hind legs just like a man.
一只华丽的鬈毛狗出现了，像人一样用后腿走路。
Basilosaurus was undoubtedly a fully marine whale with possibly nonfunctional, or vestigial, hind legs.
龙王鲸无疑是一种完全海生的鲸鱼，它的后腿可能没有功能，或退化了。
One big mottled arm shot out and caught Toad by a fore-leg, while the other-gripped him fast by a hind-leg.
一只长斑点的大胳膊猛地伸出来，抓住托德的一条前腿，另一只手抓住他的一条后腿。
Archaeopteryx shows no obvious features of gliders, such as a broad membrane connecting forelimbs and hind limbs.
始祖鸟并没有表现出明显的滑翔机的特征，比如有一层连接前肢和后肢的宽膜。
There are few known fossil specimens of these ancient snakes and only three in which the hind limbs are preserved and visible.
这些古老蛇类的化石标本非常稀少，仅有的三个标本的后肢保存完好并可见。
Many of these have minuscule limbs; some look more like snakes than lizards and a few have completely lost the toes on their hind limbs.
其中很多动物都有细小的四肢；有些看起来更像蛇而不是蜥蜴，还有一些完全失去了后肢的脚趾。
He collects cans, crisp packets, and plastic bottles from parks near his home before jumping up onto his hind legs to place them into bins.
他在家附近的公园中收集易拉罐、零食袋以及塑料瓶，然后跳起来用后腿把它们扔到垃圾桶中。
Colugos glide between trees using their patagium, or flaps of skin between their front and hind legs and extending to the tail and the neck.
鼯猴利用它们的翼膜在树之间滑翔，该翼膜是它们前后肢之间的片状悬垂物，延伸到尾巴和脖子。
Their streamlined bodies, the absence of hind legs, and the presence of a fluke and blowhole cannot disguise their affinities with land dwelling mammals.
它们的身体呈流线型，后肢完全消失，身体上长出了尾片和喷水孔，所有这些特征都无法掩饰它们与陆生哺乳动物之间的亲缘关系。
Many incomplete skeletons were found but they included, for the first time in an archaeocyte, a complete hind leg that features a foot with three tiny toes.
发现的残骸有许多都不完整，但还包含一条完整的后腿，足部有三个小脚趾，这是原始动物骨骼中的首例。
Whales and dolphins have been found with hind limbs; this rare occurrence is due to the reemergence of a trait they inherited from their terrestrial ancestors.
发现鲸和海豚身上有后肢；这种稀有的现象是由于它们在陆地上的祖先身上的特征再次被遗传。
The horse reared up on its hind legs.
那匹马后腿前立，站了起来。
Their skulls, pelvises, and hind feet are reptilian.
它们的头骨、骨盆和后脚属于爬行动物。
The Reindeer and the young hind leaped along beside them, and accompanied them to the boundary of the country.
驯鹿和小母鹿在他们身边蹦蹦跳跳地走着，陪着他们走到国土的边界。
Moreover, walruses and seals drive themselves through the water with thrusts of their hind flippers, but sea lions use their front flippers.
此外，海象和海豹用它们的后鳍推动自己在水中运动，而海狮用它们的前鳍。
When Oscar the cat lost both his hind paws in a farming accident, it was feared he'd have to trundle around in one of those wheeled-cat apparatuses.
当猫叔奥斯卡因一次农作事故失去两只后爪后，人们担心他恐怕得靠那种轮式装备滑来滑去了。
The first wrongly assumes that the pterosaurs' hind feet resembled a bat's and could serve as hooks by which the animal could hang in preparation for flight.
第一个（假设）错误地认为翼龙的后脚类似于蝙蝠的后脚，可以作为钩子，用来挂起来准备飞行。
Don't hind her in her studies.
不要在学业上扯她后腿。
Standing on their hind legs, they are about 2.5m tall.
它们用后腿站立时，高约2.5米。
All Peter could do was to throw himself down and seize one of her hind legs.
彼得能做的就是抓住她的两条后腿。
In Africa, the first human ancestors stood up on their hind legs to walk.
在非洲，首批人类祖先直立行走。
The dog helped the officers by stiffening his hind legs as they pulled him out.
小狗也懂事的把后腿蹬直，帮助营救人员拉它出来。
The dog helped the officers by stiffening his hind legs as they pulled him out.
小狗也懂事的把后腿蹬直，帮助营救人员拉它出来。
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