1.A bear's hand lacks an opposable thumb, a true digit.

熊的手没有对生拇，真正的手。

2.These opposable thumbs are a trait that humans share with our primate cousins such as chimpanzees.

这些对生拇类与黑猩猩等灵长类近亲的共同特征。

3.Scientists say without our opposable thumbs, humans might not have survived.

科学家说，如果没有我们对生的拇， 类可能无法生存。机翻

4.Opposable thumbs or the way we approach food, the way we have different emotional responses.

对立的拇或我们对待食物的方式， 我们有不同的情绪反应方式。机翻

5.It's because the thumb is opposable to the other digits that the hand is the admirable instrument it is.

正因为拇与其他手相对, 所以手才最令钦佩的乐器。机翻

6.Sometimes people talk about the opposable thumb as if it is something that only human beings had.

有时们谈论可对生拇，好像它有类才有的东西。机翻

7.To say that someone doesn't have opposable thumbs might be a form of an insult to someone.

说某没有对生拇可能对某的一种侮辱。机翻

8.Their back paws each have one large clawless opposable digit, which allows them to grasp branches with their feet, freeing their hands to forage.

它们的后各有一个大而无爪的可对立的头，这样就可以用抓住树枝，腾出手来觅食。

9.Among the key features found in primates are hands and feet that can grasp and often have opposable thumbs and toes.

灵长类动物的主要特征之一可以抓握的手，并且通常有相对的拇趾。机翻

10.Opposable thumbs, cranial size, altruism and cooking all played a part, but central to the naked ape's success was its ability to dominate other species.

对生拇、头颅大小、利他主义以及烹饪都其中原因，但类能够成功统治地球的最主要原因支配其他物种的能力。

11.In fact, there are other animals such as apes that have opposable digits; they have something that is like our opposable thumb.

事实上，还有其他动物， 如猿类，它们的手相对;他们有一些东西就像我们相对的拇。机翻

12.The phrase " opposable thumb" distinguishes (makes different) the idea of the human thumb from other animals who don't have this ability.

“opposable thumb”这个短语将类拇的概念与其他没有这种能力的动物区分开来。机翻

13.The scuba-bot’s human-like hands, with its nimble fingers and opposable thumbs, are fantastic tools for the slow, fiddly work involved in taking underwater samples.

潜水机器的手， 灵活的手相对的拇，进行水下采样缓慢而繁琐的工作的绝佳工具。机翻

14.Alpacas have too big, sturdy toes, primates usually have big strong feet with very long flexible toes and a thumb like opposable finger for gripping and swinging.

羊驼的趾很大很结实，灵长类动物的一般也大而有力，有着又长又灵活灵活的趾拇状其他手相对的头，用于抓握摆动。

15.As humans, our opposable thumbs and culinary arts have helped us get around a lot of plant defense systems, but furanocoumarins can still affect us if we're not careful.

作为类，我们进化成熟并掌握的烹饪技术帮助我们避开了很多植物的自我防卫系统，但如果我们不小心，呋喃香豆素还会对我们造成影响的。

16.If you want to start eating differently, the power is, to a large extent, in your own hands -- with those marvellous opposable thumbs -- as well as in your nose.

如果你想开始改变饮食方式，很大程度上，你的力量就在你自己的手中——那双奇妙的对生拇——以及你的鼻子。

17.For example, your ability to touch your thumb to your fingertips or give a thumbs up is thanks to opposition movement, facilitated by your saddle joint, which makes your thumbs opposable.

例如，你的拇接触尖或竖起大拇的能力要归功于你的马鞍关节促进的对向运动，这使得你的拇可以对向。

18.As humans, our opposable thumbs and culinary arts have helped us get around a lot of plant defense systems, but furanocoumarins can still affect us if we’re not careful.

作为类，我们的对生拇烹饪艺术帮助我们避开了许多植物防御系统， 但如果我们不小心， 呋喃香豆素仍然会影响我们。机翻

19.One of the hallmarks of being a hominid is having opposable thumbs: stronger, longer and more flexible than the thumbless hands of a spider monkey or the non-opposable thumbs of a marmoset.

比蜘蛛猴的无拇或绒猴的不对生拇更强壮、更长、更灵活。

20.Wang said: " It uses the false thumb as a very crude opposable thumb to grasp bamboo, sort of like our own thumbs except it is located at the wrist and is much shorter than human thumbs."

“它利用伪拇作为一种非常粗糙的对生拇来抓住竹子，有点像我们自己的拇，不过伪拇位于手腕处，比类的拇短得多。”