英漢例句雙語例句National heritage corridors of USA are studied from an example as blackstone river valley heritage corridor and actions how American people to do with corridors are summarized.通過對黑石河峽谷遺產廊道來研究美國國家遺產廊道，總結美國對于這種新型遺產保護的做法。blackstone river更多例句詞組短語短語Blackstone River Valley 黑石河峽谷blackstone river更多詞組