您要查找的是不是：
- Producer The first TROPHIC LEVEL, in a food chain. 生产者：食物链中第一个营养级。
- Insects are fairly low down (on) the food chain. 在食物链中，昆虫是相当低的一级生物。
- Removal of SRMs from food chain. 从食品链中去除。
- Its roots are part of the food chain. 根部参与食物链。
- Nothing. He's at the top of the food chain. 没有,他是食物链的最顶层。
- Plankton is at the bottom of the marine food chain. 浮游生物处于海洋食物链的最底层。
- A group of organisms that occupy the same position in a food chain. 营养层次，营养级在食物链中居于同一地位的一群生物
- A reach of prairie;the lower reaches of the food chain. 大草原地区；食物链的低等生物群
- Many young Chinese love to eat at the international food chain. 中国的很多年轻人都喜欢这个国际食品连锁店。
- No wonder we're dangling at the bottom of the food chain. 难怪我们只能在食物链的底部晃来晃去。
- The feeding level an organism occupies in a food chain. 指处于食物链某一环节上的所有生物种之总和。
- Mercury accumulates as it works its way up the food chain. 汞会随着食物链上的食物传递而积聚。
- Phytoplankton provide the basis for the whole marine food chain. 浮游植物为整个海洋的食物链提供了基础。
- The food chains extend to the abyss. 食物链一直延伸到深渊。
- Competition among the species is a continuing cycle in the animal food chain. 在动物的食物链上,不同种群之间的竞争是一个永不停息的循环。
- Aquatic food chains are different from terrestrial ones. 水生食物链不同于陆地食物链。
- Fast food chain have spread to virtually every country around the world. 快餐连锁店已经遍部到几乎世界上任何一个国家。
- You're interns, grunts, nobodies, bottom of the surgical food chain. 你们是实习医生;反映迟钝;没有经验;是外科工作人员中的底层人员.
- Nara melon, is a staple of Namib species at every rung of the food chain. 它的瓜果喂养了纳米比亚境内食物链上的各种动物。
- Diego: You're a little low on the food chain to be mouthing off, aren't you? 你是处于食物链太底端了，闭不了嘴是吧？
