鮭魚會洄游到河流的上游產卵。
Salmon migrate back to the upper reaches of rivers to spawn.
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Example sentences
每年秋天，鮭魚都會逆流而上，回到出生地洄游產卵。
每年秋天，鲑鱼都会逆流而上，回到出生地洄游产卵。
Every autumn, salmon swim upstream and return to their birthplace to migrate and spawn.
Usage Notes
Specifically used for the periodic movement of aquatic animals between different habitats.
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