A New Jersey black bear that walks upright on its two back legs and has become a social media darling has re-emerged and has been captured on video months after its last sighting.

一头用两条后腿直立行走的新泽西州的黑熊已经成为社交媒体的宠儿，距离上次被目击的几个月后，它再次出现并被拍了视频。

They both have a long tail, which helps the squirrel to balance when jumping from tree to tree, and the same large eyes, small ears and powerful back legs.

它们都有一条长长的尾巴，帮助松鼠在从一棵树跳到另一棵树时保持平衡，还有同样的大眼睛、小耳朵和有力的后腿。

The kangaroo uses its back legs to jump.

袋鼠是用牠的后脚在跳。

The kangaroo can stand very tall on its strong back legs.

袋鼠能够靠它强壮的后腿站的非常高。

The Brachiosaurus' front legs were longer than its back legs.

腕龙的前腿比后腿长。

The key to directed aerial descent is in the back legs and rearend.

定向空中下滑的关键是用后腿和尾部。

I didn't know drafts sit with their back legs in this position!

我不知道他们坐的时候后腿是在这个位置！

Dad said: All the rabbits are foreleg short and long back legs.

爸爸说：所有的兔子都是前腿短，后腿长。

Albertosaurus walked on two back legs. It could run but not very fast.

阿尔贝塔龙用两只后腿走路。它能跑，但跑的不是很快。

However, the markings on its back legs resemble that of a zebra's stripes.

然而，它腿上的花纹类似于斑马。

My tail is long. My front legs are short. My back legs are very much bigger.

我的尾巴长，我的前腿短，我的后腿非常大。

The way it runs – pumping its back legs akimbo, has earned it the name "bicycle lizard."

它逃跑的方式 – 把后腿向后弯曲，所以被人称为“自行车蜥蜴”。

The principal propelling power is furnished by the back legs which travel straight forward.

当向前直线行走时，后腿是主要的推动力量。

Viewed from overhead, you should see a definite "waist" narrowing in front of the back legs.

从开销来看，您应该看到一个明确的“腰”在后腿前缩小。

I thought the lamb was dead, but Susan picked it up by the back legs and swung it in a circle.

我以为小羊死了，但苏珊抓着它的后腿，整只弄起绕圈甩动。

She could soon stand up on her back legs, go down on her front legs and even lie down and roll over.

她可以很快在她的后腿上站起来，在她的前腿上下来并且甚至结束躺下而且卷。

Its front legs were shorter than its back legs. It had five toes on each foot. One toe on each foot had a claw.

它的前腿比后腿短，每只脚上有五个脚趾，其中的一个脚趾长着爪子。

He landed in the water, his back legs splayed, his tail high, and from there, in a few hops, he reached the beach.

它落进了海里，后腿展开，尾巴翘得高高的，只跳了几下，就从那儿跳到了海滩上。

But Queenie developed a crippling problem with her back legs, and finally my dad said she would have to be put down.

可是奎尼的两条后腿丧失了活动的功能。最后我爸爸说只能安乐死以解脱它的痛苦。

Even though Faith has this defect we taught her to stand, hop, and eventually walk on her two back legs, like a human.

尽管信念身体有缺陷，但我们教她站立，跳跃，并且最终她能够像人一样用了两条后腿行走。

A cat who prefers to stand up on two PAWS has become the latest feline Internet sensation, thanks to his super strong back legs.

最近有一只猫在网上迅速蹿红，它用两只后腿站立的萌姿俘获了大批网友。

It was thought that all frogs moved this way. They'd push off with their back legs, and then once in flight, rotate the limbs forward.

一般人们认为所有的蛙都是这样：它们后腿蹬地起跳，一旦升空，后肢前摆，前肢后摆，接着前肢先落地。

"We're looking for good back legs," Nicholson says quietly, "and where the tail meets the body you want to see some nice lumps of fat."

“我们要寻找一块好的后腿肉，”Nicholson平静的说，“在尾巴和身体交界的地方你可以看到一些漂亮的脂肪快。”

His back legs were a little shaky on the way down, so I supported his back end at times so he could rest, but he made it all the way down.

往下爬的时候，他的后腿有些不稳，所以我不时扶住他的后端让他休息一会，最后他还是成功地爬完了全程。

The framework of the long-stroke pumping unit with compound crown sheave consists of a flat frame with four columns, two cantilever beams and two back legs.

复合天轮式长冲程抽油机主架由四柱扁框架、两个悬臂梁和两个后支腿组成。

Leonard tilted his chair back on two legs and stretched his long body.

伦纳德把他的椅子向后斜着撑在两条脚上，然后舒展他修长的身躯。

The operation gave him back the use of his legs.

手术使他双腿恢复了功能。

It involved skiing with his legs apart for better balance and sitting back on the skis when he came to a turn.

他在滑雪时双腿分开以保持更好的平衡，在转弯时向后靠在滑雪板上。