marginal waters
边际水域
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Even their migration patterns, when they move from some of the Southern Ocean's most productive waters into those that are marginal, are likely shaped by the fear of predators.
即便是它们的迁移规律——从食物丰富的南部海域迁至边际地带——也很可能是因为害怕被捕食所致。
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