| 释义 |
light yearˈlight year noun [countable]   ► Astronomyasteroid, 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 1the distance that light travels in one year, about 9,460,000,000,000 kilometres, used for measuring distances between stars:  a star 3,000 light years from Earth2light years ahead/better etc than something informal much more advanced, much better etc than someone or something else: The Japanese company is light years ahead of its European competitors.3 light years ago informal a very long time ago: It all seems light years ago now. |