topsoil 뜻 - 영어 사전 및 사용 예
'topsoil'를 사용한 문장 예제
- Incessant rain has removed the topsoil.
- Distinctive layer of buried turf line and topsoil which is probably the surface visible to the 18th century antiquarians.
- The result is massive soil erosion: every year about 15,000 acres of fertile topsoil are washed away in Haiti.
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