1. It was a misunderstanding and it preyed on his conscience. 这是个误会,让他的良心很不安。
2. Pam had never learned that there were men who preyed on young runaways. 帕姆从未了解到有些人专门坑害那些年轻的离家出走者。
3. The effect was to disrupt the food chain, starving many animals and those that preyed on them. 后果是打断食物链,使许多动物和捕食它们的动物饿死。
4. Fewer otters would have allowed sea urchin populations on which the otters preyed to expand and the urchins' grazing pressure on kelp forests to increase. 海獭的减少会使海胆的数量增加,因为海獭以此为食,从而增加海胆对海藻林的食草压力。