单词练习
38、ecosystem
参考答案
e·co·sys·tem/ ˈiːkoʊsɪstəm /n. 生态系统all the plants and animals in an area, considered as a system together with their physical environmentFishing also has impacts on broader ecosystems.捕鱼对广泛的生态系统也有影响。
题目详解：
190****3819
ecosystems
183****6691
生态系统ecosystem
183****0292
ecosystems ecosystems n.生态系统
173****2719
生态系统