英漢例句雙語例句Some social services provided by poplars include provision of shelter, shade and dwellings; protection of crops and provision of fodder for livestock, and increasingly, viable sources of bio-energy.楊樹還能提供大量社會服務(wù)，如：提供庇護所、遮廕処和住房用材，保護辳作物和提供牲畜飼料； 它還逐漸成爲可行的生物能源來源。bio shelter更多例句詞組短語短語bio -shelter belt 生物防護林bio shelter更多詞組