検索内容:
soil
The soil in this area is fertile and suitable for agriculture.
soil science
He is majoring in soil science at university.
soil pollution
Soil pollution in this area has become serious due to years of industrial activity.
roundworm, nematode, member of the phylum Nematoda.
Roundworms are an important part of the soil and contribute greatly to the health and fertility of the soil.
fertility
This region is covered with fertile soil.
fertile, high yield
to contribute
He greatly contributed to the community.
contribution
His research greatly contributed to the advancement of science.
big / broad, immense
His house is very big.
part, portion / copy of a newspaper or book
Part of this movie is based on actual events.
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