The scans were compared with cross sections of humans and chimpanzees, which spend a mixture of time in trees and walking on all fours on the ground. They found that the arm bones were more heavily built, similar to those of chimps, while her lower limbs(下肢)would have meant she walked...
Later pterosaurs are more enigmatic: their arms and especially their hands seem too long to be used comfortably for walking, but their tails were too short to counterbalance their bodies if they walked just on their hindlegs. Birds also have short, stubby tail skeletons, but they manage to ...
Yet walking upright has its disadvantage. The bone structure of our ancestors developed for millions of years to support a creature that walked on all fours and has a relatively small head. Adjusting to an upright position was quite a challenge, especially when the bones had to sup...
Later pterosaurs are more enigmatic: their arms and especially their hands seem too long to be used comfortably for walking, but their tails were too short to counterbalance their bodies if they walked just on their hindlegs.Birds also have short, stubby tail skeletons, but they manage to wal...
Explore the heights with Go Ape, the high wire forest adventure course, or journey beneath the earth at Poole's Cavern. And don't forget: we are surrounded by a natural playground just perfect for walking, caving, climbing and cycling. High minded Buxton is justifiably proud of its cultural...
walk on thin ice, skate on thin ice, be on thin icev exprfigurative(take a risk)SCSimplified Chinese如履薄冰rú lǚ bó bīng TCTraditional Chinese如履薄冰 备注: Commonly used in the continuous You're walking on thin ice if you keep insulting Katie. ...
Yet walking upright has its disadvantage. The bone structure of our ancestors developed for millions of years to support a creature that walked on all fours and has a relatively small head. Adjusting to an upright position was quite a challenge, especially when the bones had to support an extr...
He fellon all fours. 他跌得趴在地上. 辞典例句 The child is crawlingon all fours. 那个小孩用手脚爬行. 辞典例句 The child is goingon all fours. 这孩子到处爬. 辞典例句 A baby crawlson all fours. 婴儿四肢着地爬行. 辞典例句 The examples are noton all fours. ...
UnabridgedCrawl,creeprefer to methods of moving like reptiles or worms, or on all fours. They are frequently interchangeable, butcrawlis used of a more prostrate movement thancreep:A dog afraid of punishment crawls toward his master.Creepexpresses slow progress:A child creeps before walking or ...
And don't forget: we are surrounded by a natural playground just perfect for walking, caving, climbing and cycling. High minded Bu_ton is justifiably proud of its cultural life and you' ll find much to suit all tastes with art, music, opera and the performing arts at Bu_...