the food chainHBall animals and plants considered as a group in which a plant is eaten by an insect or animal, which is then eaten by another animal and so on 食物链 Pollution is affecting many creatures lower down the food chain. 污染正影响着食物链下层的许多生物。
the food chain• Pollution is having a long-term impact on the food chain in the bay.
→5 See picture of shark 鲨鱼, seal 海豹, penguin 企鹅 ... →4 See picture of 见图 food chain → the food chain at food chain(1)