intransitive. Of fish: to pass in numbers up (or down) a river, esp. as part of a mass migration. Frequently with up. Cf. run, n.2 7.
| 单词 | θ37662 |
| 释义 | the world > animals > fish > [verb (intransitive)] > migrate (2) run1743 intransitive. Of fish: to pass in numbers up (or down) a river, esp. as part of a mass migration. Frequently with up. Cf. run, n.2 7. migrate1998 Biology. intransitive. Of an animal: to move from one region, location, or habitat to another in order to breed, grow, or find food; esp. (of a… |
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