| 释义 |
- adj.【动】(鱼等)下海繁殖的；(为产卵而顺流)入河的
- 网络降河回游产卵；降河的；降河产卵鱼种
adj. | 6. 【动物;动物学】(鱼等)下海繁殖的;(为产卵而顺流)入河的,降河性的 6. 【动物;动物学】(鱼等)下海繁殖的;(为产卵而顺流)入河的,降河性的 |
adj. | 1. describes fish such as eels that spend most of their lives in fresh water but migrate to salt water to breed. |
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