2. 外语
  3. The disappearance of some species_____________(打破生态平衡) because the food web is destroyed.

The disappearance of some species_____________(打破生态平衡) because the food web is destroyed.

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问题 The disappearance of some species_____________(打破生态平衡) because the food web is destroyed.
选项
答案breaks the ecological balance
解析
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大学英语四级

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