sun·spot 
(sŭnspŏt′)
(sŭnspŏt′)n.
Any of the relatively cool dark spots appearing periodically in groups on the surface of the sun that are associated with strong magnetic fields.
sunspotsunspots on the sun
| 单词 | sunspot |
| 释义 | sun·spot (sŭnspŏt′)n. Any of the relatively cool dark spots appearing periodically in groups on the surface of the sun that are associated with strong magnetic fields. sunspotsunspots on the sun |
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