| 单词 | sunspot |
| 释义 | sunspot (once / 28758 pages) n WORD FAMILY sunspot: sunspots USAGE EXAMPLESLarge sunspots were seen in 1816, and so that might have something to do with it. Slate(Aug 23, 2016) Luckily for Buckles and his team, the Environmental Science Services Administration, the precursor to NOAA, initially spotted sunspots on May 18. National Geographic(Aug 11, 2016) While solar activity appears to have been calm of late, things may change soon with the appearance of two large sunspot groups now facing Earth. National Geographic(Jul 18, 2016) n a cooler darker spot appearing periodically on the sun's photosphere; associated with a strong magnetic field Syn|Hyper macula dapple, fleck, maculation, patch, speckle, spot a small contrasting part of something |
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