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Nebula
01
星云
a glowing cloud of gas and dust in outer space, often the result of a star explosion or formation
02
星云
(pathology) a cloudy area in the cornea of the eye
03
星云
cloudiness of the urine
04
星云
a medicinal liquid preparation intended for use in an atomizer
例子
A nebula forms when a star explodes or sheds its outer layers.
A corneal nebula appears as a localized, opaque patch in the normally transparent cornea tissue.
Most stargazers will never glimpse more than a scintilla of the nebula's true beauty through amateur telescopes.
If left untreated, a corneal nebula can increase in size and lead to more vision impairment or even blindness.
