The leatherback is certainly not the only animal with such an arrangement; gulls have a countercurrent exchange in their legs.
当然并不只是棱皮龟有这种结构,海鸥的腿部也有一个逆流交换系统。
2
I have lost some weight, specially in legs, thighs areas but I am not able to reduce my bellyfat.
我的体重减轻了一些,特别是腿和大腿的部分,但是我没能减掉腹部脂肪。
3
Some, if not all, snakes used to havelegs, and now new research suggests snakes lost their limbs by growing them more slowly or for a shorter period of time.