as we glide effortlessly down the river. 努力生存着的各种动植物
Her seven-foot wingspan allows her to glide effortlessly 长达两米的翼展让她
In their search for food chimpanzees move effortlessly between the forest floor and the canopy. 非洲黑猩猩不仅在地表上也在树冠层上寻找食物
It's summer, and eagles effortlessly cruise the thermals, 在夏天 雄鹰可以毫不费力的在热气流上盘旋