sundog
基本解释
- n.[气](=parhelion)假日；幻日
英汉例句
- A solar phenomenon known as a sundog arcs over the tundra in Churchill, Manitoba, Canada.
加拿大马尼托巴省丘吉尔冻原上出现了幻日光弧这种日光现象。 - Analogous to a sundog or parhelion, the paraselene is produced by moonlight shining through thin, hexagonal-shaped ice crystals in high cirrus clouds.
类似环日的形成一样，在高空卷云中，月光通过稀薄、具有六边形状的冰晶时产生了幻月。
英英字典
- a bright spot that appears in the sky on either side of the sun, caused by the refraction (= bending) of light through ice crystals in high cloud