1. You've fractured a rib, maybe more than one. 你断了一根肋骨，也许不止一根。
2. If you sneeze too hard, you could fracture a rib. 要是你打喷嚏用力过猛，你可能会折断肋骨。
3. We picked up the rib fragment, flipped it over and there were these two clear marks. 我们捡起肋骨碎片，将它翻过来，就发现有这两处清晰的痕迹。
4. One bone was a piece of rib from a cow-sized mammal; the other, a leg bone fragment from a mammal the size of a goat. 一根骨头是来自牛一般大小的哺乳动物的肋骨；另一根是来自山羊一般大小的哺乳动物的腿骨碎片。
5. It would be helpful if someone uncovered a Diprotodon skeleton with a spear point embedded in a rib — or perhaps Thylacoleo bones next to the charcoal of a human campfire. 如果有人能在人类篝火的炭火旁发现一具肋骨插着矛尖的双原齿动物骨架，或者发现袋狼的骨头，那将会很有帮助。
