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food pyramid
释义
WordReference Random House Unabridged Dictionary of American English © 2024
food
′
pyr′amid,
[
Ecol.
]
Ecology
(of a food chain) successive levels of predation in a food chain represented schematically as a pyramid because upper levels normally consist of decreasing numbers of larger predators.
1945–50
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更新时间:2025/11/18 9:00:45