spawning ground
noun [ C usually singular ] uk/ˈspɔː.nɪŋ ˌɡraʊnd/ us/ˈspɑː.nɪŋ ˌɡraʊnd/
（鱼的）产卵场
a place where fish leave their eggs for fertilization
Salmon and sea trout use the upper river as a spawning ground. 鲑和海鳟把河的上游作为产卵场。
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