音标：['nebjulә]
n. 星云, 角膜云翳
【医】 薄翳; 角膜翳, 角膜云翳; 喷雾剂
在线英汉词典

nebula的短语、例句：

nebula n (pl ~e or ~s) light or dark patch in the night sky caused by a cluster of very distant stars or a cloud of dust or gas 星云
the Crab nebula 巨蟹座星云.