1. Snake embryos, for example, sprout hind limb buds. 例如，蛇的胚胎会生长出后肢。
2. We want to understand how limb design determines the energy costs of walking and running. 我们想了解肢体结构是如何决定步行和奔跑时的能量消耗。
3. I tried to jump up, but I could not stir a limb, then I yelled aloud in a frenzy of fright. 我试图跳起来，可是我四肢动弹不得，然后我在惊骇中大声喊叫起来。
4. He stretched himself out under the bench, did not move a limb, and behaved as if he were stone dead. 他直挺挺地躺在长凳下，四肢一动也不动，表现得像死了一样。
5. The same way cells that form the limb become more like muscle cells or skin cells, or the structures that become the limb. 同样的方式，形成肢体的细胞变得更像肌肉细胞或皮肤细胞，或成为肢体的结构。
