四足动物的脖子通常很长，这样它们就可以毫不费力地够到食物，但是大象的脖子很短，这样它就可以更容易地支撑它巨大的头和沉重的牙齿的重量。
The neck of four footed animals is usually long, to have them reach their food without difficulty, but the elephant has a short neck, to make him more easily support the weight of his huge head and heavy teeth.
我们读了一封关于一些四足动物的髓质脊髓的信。
We read a letter about the medulla spinalis of some quadrupeds.
由塔丰·奥兹利克带领的土耳其科学家提出，一个基因的突变可能会导致四足动物的出现。
Turkish scientists led by Tayfun Ozcelik suggested that a mutation in a single gene might result in quadrupedalism.
大象是世界上最大的四足动物。
The elephant is the largest four - footed animal in the world.
大象是世界上最大的四足动物。
The elephant is the largest four-footed animal in the world.
大象是四足动物中最大的动物。
腹鳍对应着四足动物的后肢。
Ventral (or pelvic) fins correspond to the hind limbs of a quadruped.
后腿腱四足动物跗关节后的一个大肌腱。
毕加索的画和他的生活一个样，满是四足动物和鸟儿。
Picasso's art was as populated with animals and birds as his life.
带指甲或爪的动物的足，尤指四足动物的爪。
The nailed or clawed foot of an animal, especially of a quadruped.
'掌骨'。' '四足动物前脚所对应的部分。
大象是四足动物。
我们去动物园看猩猩、大象和各种其他四足动物。
We went to the zoo to see the gorillas, elephants, and various other beasts.
马是四足动物。
这是为任何东西像是人，有动画的柱子，四足动物之类设计的。
This is for anything like creatures, animated props, four-legged animals, etc.
虽然生物学家能轻易让四足动物在侧腹长出额外的肢，在颈部却做不到。
Although biologists can easily induce extra limbs to grow on the flank of a tetrapod this cannot be done in the neck.
虽然生物学家能轻易让四足动物在侧腹长出额外的肢，在颈部却做不到。
Although biologists can easily induce extra limbs to grow on the flank of a tetrapod, this cannot be done in the neck.
摘要鸟类的跗跖骨以其独特的结构特征与其他四足动物跗骨、跖骨相区别。
Abstract the avian tarsometatarsus distinguished from the tarsus and metatarsus of other quadruped by its unique characteristic of structure.
麒麟是一种四足动物，它是吉祥的象征。所以和龙、凤、麒麟有关的词语都是褒义词。
Kylin, a quadruped, is an auspicious symbol. Therefore, the words concerned with these three animals are commendatory.
力克最初的设计灵感来源于布拉塞龙，一种粗壮、有獠牙的四足动物，生活在三叠纪。
The initial designs of the reek were inspired by Placerias, a stout, four-legged tusked species from the Triassic era.
“某些四足动物不是马” ，以反言论法，变成了“某些不是马的东西是四足动物” 。
" some quadrupeds are not houses " becomes, by contraposition, " some thing not house are quadrupeds.
许多原始生物灭绝，鲨鱼和硬骨鱼成为水域的主人，四足动物最终进化成了恐龙和哺乳动物，征服了陆地。
Many primitive lineages went extinct as sharks and bony fish became masters of the waters and tetrapods, the four-legged animals that eventually evolved into dinosaurs and mammals, conquered the land.
因此，当一个新的婴儿是引入一个家庭中，它可以是一个富有挑战性的时间，我们敬爱的四足动物。
Thus, when a new baby is introduced into a family, it can be a challenging time for our beloved four legged creatures.
克拉克是英国剑桥大学的科学博士与脊椎动物古生物学的高级讲师，研究四足动物起源已超过25年。
JENNIFER A. CLACK, a Reader in vertebrate paleontology and doctor of science at the University of Cambridge, has been studying tetrapod origins for 25 years.
克拉克是英国剑桥大学的科学博士与脊椎动物古生物学的高级讲师，研究四足动物起源已超过25年。
JENNIFER A. CLACK, a Reader in vertebrate paleontology and doctor of science at the University of Cambridge, has been studying tetrapod origins for 25 years.
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