main food source翻译

main food source的基本解释

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主要食物来源：指人类或动物在某一地区或某一时期所依赖的主要食物来源。

例句

The collapse of the world's fisheries due to overfishing, for example, has devastated seabird populations that have lost their main food source.例如，世界渔业的衰退便是由于过度的捕捞，因为主要食物来源的减少，也导致海鸟数量的急剧下降。
S. midwest. The gene crops are designed to resist herbicides and that's allowed farmers to wipe out milkweed, which is the main food source for Monarches.基因作物可以抵抗除草剂，这样农民就可以用除草剂除掉马利筋，而马利筋是黑脉金斑蝶最主要的食物来源。
Krill, the whales' main source of food, are threatened by higher ocean temperatures and melting sea ice around the Antarctic, which would in turn hurt the whales' chances of survival.在南极地区，由于海洋温度的上升和海冰的融化，露脊鲸主要的食物来源南极磷虾受到了严重威胁，这反过来也危及到了鲸类的生存。
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