单词：rays
n a branch of an umbel or an umbelliform inflorescence
n (mathematics) a straight line extending from a point
n a group of nearly parallel lines of electromagnetic radiation
n the syllable naming the second (supertonic) note of any major scale in solmization
n any of the stiff bony spines in the fin of a fish
n cartilaginous fishes having horizontally flattened bodies and enlarged winglike pectoral fins with gills on the underside; most swim by moving the pectoral fins
v emit as rays
v extend or spread outward from a center or focus or inward towards a center
v expose to radiation
rays的用法和样例：
例句
- The researches are concerned with alpha rays.这些研究是关于阿尔法射线的。
- The ozone layer blocks some harmful rays which the sun gives off.臭氧层阻隔了太阳发出的一些有害射线。
词汇搭配
- ray光线
- gamma radiation伽马射线
- alpha rays线
- X-rayX射线
- gamma rays伽马射线
- catch some rays晒太阳
- sunshine阳光
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