推荐回答（2个）
Feed on [,fid'ɔn]
以...为食，以...为能量
过去时态：fed on；现在进行时态：feeding on; 第三人称单数：feeds on
例：
1. Vampires feed on human's blood.
吸血鬼以人类的血液为食。
2. The caterpillars feed on a wide range of trees, shrubs and plants.
毛虫以各类树木、灌木和植物为食。
3. All animals including men feed on plants or other animals.
包括人类在内的所有动物都以植物或其他动物为食。
4. Feeding on the bats in the cave, he managed to escape by himself after 13 days.
以岩洞里的蝙蝠为食，他竭尽全力在13天后自己逃了出来。
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