许多昆虫占据着沼泽，以活或死的绳草组织为食，而红翼鸫、麻雀、啮齿动物、兔子和鹿直接以绳草为食。

Numerous insects occupy the marsh, feeding on living or dead cordgrass tissue, and redwing blackbirds, sparrows, rodents, rabbits, and deer feed directly on the cordgrass.

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我不知道这关斯内普什么事，可是我们可以肯定她知道他是个食死徒。

I don't know what's going on with Snape, but we can be sure she knows he was a Death Eater.

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这些小鱼以死皮为食，非常适合为人们治疗诸如牛皮癣等皮肤病。

Doctor fish feed on dead skin.For this reason, a visit to a spa pool teeming with doctor fish is regarded as a good treatment for people with psoriasis.

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