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SCIENCE STUDY

Worms that hurt the forest

作者:TEENS
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勤劳松土的蚯蚓这次带来了大麻烦。

词数 180 建议阅读时间 4分钟

Earthworms (蚯蚓) are friends of farmers. They can make holes in the soil (土壤), so rain and air can get through. That helps plants grow. But now in the United States, some earthworms are causing problems.
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