单词	sunspot
释义	sunspotsun‧spot /ˈsʌnspɒt $ -spɑːt/ noun [countable] Examples EXAMPLES FROM THE CORPUS A year later he published his three letters on sunspots. In one such list the Jesuit astronomer Christopher Scheiner is included for his discovery of the sunspots. It also shows a clear relationship with sunspot activity; by and large there are fewer sunspots when the Sun is bigger. Scientists are concerned that a special event, such as a sunspot or supernova might occur during this long period of communications blackout. Then he saw sunspots and described their variations. They are probably produced by variations in sunspot activity. They say that the concentrated magnetic fields in sunspots spread out all over the sun somewhat after the maximum of solar activity. word sets WORD SETS► Astronomy asteroid, nounastro-, prefixastronaut, nounastronomical, adjectiveastronomy, nounastrophysics, nounAU, aurora borealis, nounBig Bang, the, nounblack hole, nouncelestial, adjectivecomet, nounconstellation, nouncorona, nouncosmic, adjectivecosmic ray, nouncosmology, nouncosmonaut, noundead, adjectiveearth, nouneclipse, nouneclipse, verbecliptic, nounequinox, nounescape velocity, nounextraterrestrial, adjectivegalactic, adjectivegalaxy, noungeostationary orbit, nounHubble Space Telescope, the, infinity, nounintergalactic, adjectiveinterplanetary, adjectiveinterstellar, adjectiveJupiter, nounlaunch, verblaunch, nounlight year, nounLittle Bear, lunar, adjectivelunar month, nounmagnitude, nounMars, nounMercury, nounmeteor, nounmeteoric, adjectivemeteorite, nounMilky Way, the, month, nounmoon, nounmorning star, nounNASA, nounnebula, nounNeptune, nounnew moon, nounnova, nounobservatory, nounorbit, verborbit, nounorbiter, nounouter space, nounphase, nounplanet, nounplanetarium, nounplasma, nounPluto, nounquadrant, nounquarter, nounquasar, nounradio telescope, nounring, nounrocket, nounsatellite, nounSaturn, nounsea, nounshooting star, nounsolar, adjectivesolar system, nounspace, nounspace capsule, nounspacecraft, nounspace probe, nounspaceship, nounspace shuttle, nounspace station, nounstar, nounstargazer, nounsteady state theory, nounstellar, adjectivesun, nounsunspot, nounsupernova, nountelescope, nountelescopic, adjectiveterrestrial, adjectiveUranus, nounVenus, nounwane, verbwax, verbwhite dwarf, nounworld, nounzenith, noun technical a small dark area on the sun’s surface
随便看	difficulty diffidence diffident diffidently diffract diffraction diffuse diffuseness diffusion dig digerati digest digestible digestion digestive digestive biscuit digger diggings Digibox digicam digipack digit digital digital divide digital immigrant

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