公: Ⅰ形容词1.(属于国家或集体的) state-owned; collective; public 短语和例子公物 public possessions; 公关 public relations2.(共同的;大家承认的) common; general 短语和例子公分母 common denominator; 公约 convention; pact3.(属于国际间的) int
洪: i 形容词(大) big; vast; grand 短语和例子洪福 great luck; 洪涛 big wavesⅡ名词1.(洪水) flood 短语和例子防洪 control or prevent flood; 分洪 flood diversion; reduce [mitigate] flood; 山洪 mountain torrents2.(姓氏) a surnam