| 脊背 | jǐ bèi | back (of a human or other vertebrate) | |
| 脊椎动物 | jǐ zhuī dòng wù | vertebrate | |
| 脊髓 | jǐ suǐ | spinal cord; medulla spinalis | |
| 屋脊 | wū jǐ | roof ridge | |
| 脊柱 | jǐ zhù | spinal column; columna vertebralis |
| 1 | Boats have long had spines and ribs like an animal's ribcage. | |
| 2 | The towering ridge of a sand dune in the Arabian Desert points to the afternoon sun. | |
| 3 | Scientists said they were surprised to see how different the animals were on either side of the ridge. | |
| 4 | However, because Ascension occupies a "hot spot" on the ridge, its volcano is especially active. | |
| 5 | Russia, which also has a deep-sea submersible, applied to explore a Mid-Atlantic Ridge site. |
