Hints:

以音頻內(nèi)容為準(zhǔn)

英式拼寫

I don't know if you can see this. But here is the tip of wing, right here. And there's a lovely little claw coming of it.
Yeah, so that's the end of one of the digits on their arms, on their wings.
Yeah. And you know, just there is a relic of their ancestors.
But the real clues about dinosaurs come from seeing what the relationship is between a bird's muscles and its bones.
Right away we can see some of the fine muscles here. You can see this lovely, red colour, beautiful beefy muscle.
So based on dissections like this, how accurately do you think you can reconstruct the musculature of extinct dinosaurs?
You can look at any bone and tell something about the soft tissue anatomy of the animal, from the scars, as they're called, the muscle scars like ligament and tendon scars on the bones that are attachment points for all these things that we see here as soft tissue.

這篇材料你能聽出多少？點擊這里做聽寫，提高外語水平>>