food chain

US /ˈfuːd ˌtʃeɪn/
UK /ˈfuːd ˌtʃeɪn/
"food chain" picture
1.

食物链

a hierarchical series of organisms each dependent on the next as a source of food

:
In the ocean food chain, plankton are at the bottom.
在海洋食物链中,浮游生物处于最底层。
Humans are at the top of the terrestrial food chain.
人类处于陆地食物链的顶端。