夸夸其言放言高论(fàng yán gāo lùn): ⒈ 谓毫无顾忌地大发议论。海阔天空(hǎi kuò tiān kōng): ⒈ 像大海那样广阔,如蓝天那样空旷。形容开阔,无拘无束。侃侃而谈(kǎn kǎn...