Deeply forked or notched, as the tails of certain birds.
（特别是指蝴蝶和鸟）有像燕子一样的分叉的尾巴。
Having all toes pointing forwards. Used of certain birds.
四趾向前的足趾向前方长的。
Have you ever read Darwin's observations on the habits of certain birds?
你曾经读过达尔文对某些鸟类的习性的评述吗？
A fluttering or tremulous sound, as that made by certain birds; a warble.
啭鸣， 抖音颤抖的或波动的声音，如某些鸟发出的叫声，啭鸣。
To produce a booming, reverberating sound by beating the wings, as certain birds do.
拍翅，鼓翅振翅发出低沉有回响的声音，如某些鸟振翅发出扑扑声。
Having separate toes, each bordered by a weblike lobe. Used of the feet of certain birds.
有蹼的有分开的足趾，每趾都粘有网状叶，用于某些鸟类。
They have found that family traits are key to identifying why certain birds thrive in European cities.
他们发现家族特质是说明为什么某些鸟类能在欧洲城市立足的关键。
Certain birds, like pigeons, also seemed to be especially noisy, and were reported to be flying in unusual patterns before the earthquake.
有些鸟，如鸽子，也似乎显得特别聒噪，据说地震前它们飞行的方式也与往常不同。
You see, adult female birds during egg production produce a layer of spongy bone tissue inside certain long bones.
你看，成年雌鸟在产蛋的过程中会在某些长骨内产生一层海绵状的骨组织。
Certain cultural habits, such as purchasing live birds at local markets and slaughtering at home, also involve moments of intensive contact.
某些文化传统，如在当地市场购买活禽，然后在家中进行宰杀，也会带来密切接触。
Although mockingbirdssuperbly mimic the songs and calls of many birds, they can nonethelessbe quickly identified as mockingbirds by certain aural clues.
尽管模仿鸟学很多种鸟的鸣叫声惟妙惟肖，但人类还是能够依其声音上的线索很快识别它们。
The major reason for hearing loss and certain balance disorders is that - unlike other species such as birds - humans and other mammals are unable to spontaneously regenerate these hearing cells.
听力丧失以及相关失衡的主要原因在于人类和其他一些哺乳动物的听觉细胞无法自行再生。这点和其他生物如鸟类不同。
It would be great if you could open an app by voice (“Open Angry Birds”) instead of hunting through 11 screens, or turn on Airplane Mode by voice, or display a certain set of photos.
如果你能通过语音就能打开一个软件(比如说，愤怒的小鸟)，而不是通过在11个屏幕中翻来翻去的查找这个软件，那就更不得了了。 你也可以通过语音把手机设置成飞行模式或者要求它显示一组照片。
Birds have different clotting proteins than humans, which explains our better clotting in trauma, but their avoidance of certain cardiovascular problems. Karen Hopkin reports.
鸟类的凝血蛋白与人类不同，这说明了为什么我们外伤时更容易恢复，而鸟类却不会发生心血管疾病。
In order to keep the flying speed, produce certain aerodynamic lift, the birds overcome the air resistance with three kinds of methods.
为了保持飞行速度，产生一定的气动升力，鸟类用三种办法来克服空气阻力。
Here is a scientific experiment on the homing of birds, the facts of which are quite certain.
这里讲的是一次对鸟类归还习性进行的科学试验情况。实验的事实是很确定的。
A substance composed chiefly of the dung of sea birds or bats, accumulated along certain coastal areas or in caves and used as fertilizer.
鸟粪一种主要由海鸟或蝙蝠的排泄物构成的物质，在某些海岸或山洞中不断积累，用做肥料。
Although mockingbirds superbly mimic the songs and calls of many birds, they can nonetheless be quickly identified as mockingbirds by certain aural clues.
尽管模仿鸟学很多种鸟的鸣叫声惟妙惟肖，但人类还是能够依其声音上的线索很快识别它们。
Towards three o 'clock new flocks of birds were seen through certain trees, at whose aromatic berries they were pecking, those of the juniper - tree among others.
将近三点钟的时候，树林间又飞来了另外一群鸟，它们在林中的杜松上啄食芳香的松子。
Although mockingbirds superbly mimic the songs and calls of many birds, they can nonetheless be quickly identified as mockingbirds by certain aural clues. 65.
尽管仿照鸟学很多种鸟的鸣叫声惟妙惟肖，但人类还是能够依其声音上的线索很快识别它们。
A membrane or fold of skin connecting the toes, as of certain amphibians, birds, and mammals.
蹼、细长身体的水栖哺乳动物；以其皮毛而名贵。
A membrane or fold of skin connecting the toes, as of certain amphibians, birds, and mammals.
蹼、细长身体的水栖哺乳动物；以其皮毛而名贵。
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