边缘: 1.(沿边的部分) border; edge; fringe; margin; rim; limb; skirt; verge; brink; periphery 短语和例子经济破产的边缘 the verge of economic bankruptcy; 悬崖的边缘 the edge of a precipice; 森林的边缘 the fringe of a forest
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