基本解釋n.骨層同根派生 bonebed相關(guān)詞英漢例句Today the excavation of the VMNH bonebed is a long-term project that serves a number of goals. 目前，弗吉尼亞州自然歷史博物館在該化石産地的發(fā)掘是一個(gè)服務(wù)於多個(gè)方麪的長(zhǎng)期項(xiàng)目。bonebed更多例句