Endoskeletal
[解]内骨骼的
🗣️ 情景例句
We're in luck.
我们运气好。
He has a headache and needs aspirin.
他头痛，需要阿斯匹林。
Let us suppose that a child suddenly crosses the road in front of you.
让我们假设一个小孩子突然在你前面穿过马路。