四足的

La Boston Dynamics ha creato il "Most Advanced Quadruped Robot on Earth", BigDog, per conto della Darpa.

波士顿动力学创造了"最先进的机器人四足动物在地球上"， BigDog ，代表DARPA。

The elephant is the largest four-footed animal in the world.

大象是世界上最大的四足动物。

First, it will heavily take away in four-footed friend new toy.

首先，它会带走大量的四足朋友新玩具。

The elephant is the largest four-footed animal.

大象是四足动物中最大的动物。

Taken together, the findings provide support for the hypothesis that anatomical differences affecting gait existed among our earliest apelike ancestors, and that these differences provided the genetic variation which natural selection could act on when changes in the environment gave bipeds an advantage over quadrupeds.

第六段告诉了我们研究的两个假设：一种假设：猿人祖先在解剖学意义上存在着差异，这一差异影响了它们的步态；另一种假设：这些差异为自然选择所决定的遗传变异提供了可能性，而环境变化使得两足行走的猿人比起四足行走的猿人更有优势。因此B是答案。

Whereas the proximal part of the tetrapod limb skeleton can easily be homologized with the paired fin skeletons of sarcopterygian (lobe-finned) fish, there has been much debate about the origin of digits.

早期的假设认为，四足动物的足趾与鱼类的放射鳍同源，但根据发育研究结果，同时根据一种名叫&潘氏鱼&、与陆地脊椎动物密切相关的目前已经灭绝的鱼（这种鱼似乎没有末梢的趾状放射鳍）的鳍，这一观点似乎并不可靠。

Its paramount importance is due to its having the greatest number and best-preserved fossil specimens of the lobe-finned fishes that gave rise to the first four-legged, air-breathing terrestrial vertebrates the tetrapods.

公园的重要性在于这里有大量的保存完好的鱼石螈的化石标本。鱼石螈是第一个进化为四条腿的，呼吸空气的陆地脊椎动物四足动物。

An economical leg—wheel hybrid device is proposed. Simple as the device is, it can be used for both gait analysis and control method implementation , keeping the main features of dynamic walking. The similarities and differences between the device and real quadrupeds are analyzed in detail.

本文提出一种经济的足轮混合实验装置，为步态分析和控制方法的研究提供了一个简易而不失步行运动主要特征的实验对象，分析和比较了该装置与真四足之间的异同。

The greatness of the prize induced Oedipus, a man of wisdom and penetration, but lame from wounds in his feet, to accept the condition and make the trial: who presenting himself full of confidence and alacrity before the Sphinx, and being asked what kind of animal it was which was born four-footed, afterwards became two-footed, then three-footed, and at last four-footed again , answered readily that it was man; who at his birth and during his infancy sprawls on all fours, hardly attempting to creep; in a little while walks upright on two feet; in later years leans on a walking stick and so goes as it were on three; and at last in extreme age and decrepitude, his sinews all failing, sinks into a quadruped again, and keeps his bed.

这丰厚的彩头引得俄狄浦斯，这位富于智慧和洞察力，却因受伤而瘸腿的人，接受了条件，前去一试：他信心十足，心情放松的出现在斯芬克斯面前，被问到哪种动物生下来四条腿，后来只有两条腿，又后来变成三条腿，最后又回到四条腿。他马上就回答说这是人，人在刚刚出生和婴儿阶段时以四肢着地，艰难的试着爬行；不久之后就两脚直立行走；到了晚年要着拐棍走路所以是三条腿；最后风烛残年了，腿骨无力，又回到四足状态，呆在床上。

Whatsoever goes upon the belly, and whatsoever goes upon all four, or whatsoever has more feet among all creeping things that creep upon the earth, them all of you shall not eat; for they are an abomination.

042 凡用肚子行走的和用四足行走的，或是有许多足的，就是一切爬在地上的，你们都不可吃，因为是可憎的。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。