Before long, the walls started to crumble from the inside out... 不久之后 墙开始从内部碎裂
Long hair, smaller ears, and shorter tails 长毛 小耳 短尾
Mammals had a long way to go to become masters of the world's oceans, 哺乳动物想要成为海洋的主宰 还有很长的路要走
His time down here is limited by how long he can hold his breath. 它在水下的时间 受限于它能屏住呼吸的时间
They evolved flight long before the mammals. 进化出飞行技能远早于哺乳动物
Today, they are 2,500 kilometers long, 如今该山脉长2500公里
He boasts an impressively long appendage. 它有一个极长的附属器官