海阔天空: 1.(形容大自然的广阔) as boundless as the sea and sky [heavens]; as broad as the sea and sky; in open sea and sky; endlessly vast; the sea is wide and the sky spacious.2.(比喻想象或说话无拘束、无边际) discursive
海阔天空地了聊个没完: have a rambling chat about everything under the sun
海阔天空地漫谈一通不解决任何实际问题: indulge in far ranging rambling discourse without solving any practical problem
