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r開頭的簡單單詞1.Rabbit(兔子):RabbitisasmallmammalthatbelongstothefamilyLeporidae.Itisknownforitslongears,shortfluffytail,andfastrunningspeed.Rabbitsareherbivoresandmainlyfeedongrass,leaves,andvegetables.Theyarecommonlykeptaspetsduetotheircuteappearance.Theyreproducerapidlyandhaveashortgestationperiod.Rabbitsarealsofoundinthewild,wheretheyliveinburrowsandareknownfortheiragilityandabilitytohop.
2.Rain(雨):RainisanaturalphenomenonthatoccurswhenwaterdropletsfallfromtheatmospheretotheEarth'ssurface.Itisanessentialpartofthewatercycleandplaysavitalroleinmaintainingtheplanet'secosystem.Rainisformedwhenwatervaporintheatmospherecondensesintodropletsandbecomestooheavytostaysuspended.Itthenfallsasraindrops.Rainfalliscrucialforagriculture,asitprovideswaterforcropsandsustainsthegrowthofplants.Italsoreplenishesfreshwatersourcessuchaslakes,rivers,andgroundwater.
3.Road(道路):Aroadisapathwayorroutethatallowsvehiclesandpedestrianstotravelfromoneplacetoanother.Roadscanvaryinsizeandpurpose,rangingfromsmallresidentialstreetstolargehighways.Theyareconstructedusingvariousmaterialssuchasasphalt,concrete,orgravel.Roadsarevitalfortransportationandfacilitatethemovementofpeopleandgoods.Theyalsoplayasignificantroleinurbandevelopmentandconnectivitybetweenregions.However,roadscanalsobeasourceoftrafficcongestionandpollution,highlightingtheneedforefficienttransportationsystems.
4.Rainbow(彩虹):Arainbowisameteorologicalphenomenonthatoccurswhensunlightisreflected,refracted,anddispersedinwaterdropletsintheair.Itformsacirculararcofcolorsinthesky,typicallyconsistingofsevencolors:red,orange,yellow,green,blue,indigo,andviolet(ROYGBIV).Rainbowsaremostcommonlyseenafterrainshowersorwhentherearewaterdropletsintheair.Theyhaveasymbolicmeaninginmanyculturesandareoftenassociatedwithhope,peace,andbeauty.
5.River(河流):Ariverisanaturalflowingwatercourse,typicallyoriginatingfromasourcesuchasaspring,lake,orglacierandflowingtowardsanocean,sea,oranotherriver.RiversplayavitalroleinshapingtheEarth'slandscapeandareacrucialcomponentofthehydrologicalcycle.Theyprovidehabitatsforvariousplantsandanimalsandserveasasourceoffreshwaterfordrinking,agriculture,andindustrialpurposes.Rivershavebeensignificantinhumancivilizationsinceancienttimesandhaveinfluencedthedevelopmentofcities,trade,andculture.
6.Rose(玫瑰花):RoseisawoodyperennialfloweringplantthatbelongstothegenusRosa.Itisknownforitsfragrantflowers,thornystems,andattractivecolors.Rosesarecultivatedworldwideandarepopularingardens,floralarrangements,andasasymbolofloveandbeauty.Theycomeindifferentvarietiesandcultivars,eachwithitsuniquecharacteristicsandfragrance.Roseshavealsobeenusedforvariouspurposes,suchasinperfumes,cosmetics,andculinaryapplications.
7.Rock(巖石):ArockisasolidmassormineralmaterialthatformstheEarth'scrust.Rocksarecomposedofmineralsandcanvaryinsize,shape,andcolor.Theycanbeclassifiedintothreemaintypes:igneous,sedimentary,andmetamorphicrocks.Igneousrocksareformedfromthesolidificationofmoltenmagma,sedimentaryrocksareformedfromtheaccumulationofsedimentovertime,andmetamorphicrocksareformedfrompre-existingrocksthroughheatandpressure.Rockshavebeensignificantingeologicalresearch,construction,andasasourceofvaluablemineralsandresources.
8.Rainforest(熱帶雨林):Arainforestisadenseforestcharacterizedbyhighrainfallandahumidclimate.RainforestsarefoundintropicalregionsneartheEquatorandareknownfortheirrichbiodiversityandcomplexecosystems.Theyarehometoawidevarietyofplantandanimalspecies,manyofwhichareuniqueandendemictotheseenvironments.RainforestsplayacrucialroleinregulatingtheEarth'sclimate,astheyabsorbcarbondioxideandreleaseoxygenthroughphotosynthesis.Theyalsoprovideessentialresourcessuchastimber,medicinalplants,andsupportforindigenouscommunities.
9.Robot(機(jī)器人):Arobotisamachineprogrammedtoperformspecifictasksautonomouslyorwithhumanguidance.Robotscomeindifferentformsandcanhavevariousfunctionalities,rangingfromindustrialrobotsusedinmanufacturingprocessestohumanoidrobotsdesignedforsocialinteraction.Theycanbecontrolledbycomputerprogramsandsensors,allowingthemtonavigatetheirsurroundingsandperformtaskswithprecisionandefficiency.Robotshavebeenwidelyusedinindustries,healthcare,spaceexploration,andincreasinglyascompanionsorhelpersindailylife.
10.RenewableEnergy(可再生能源):Renewableenergyreferstoenergysourcesderivedfromnaturalprocessesthatcanbereplenishedwithinarelativelyshorttimeframecomparedtonon-renewablesourcessuchasfossilfuels.Examplesofrenewableenergysourcesincludesolarpower,windpower,hydropower,bioenergy,andgeothermalenergy.Renewableenergyisseenasanalternativetofossilfuels,whichcontributetoenvironmentalpollutionandc
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