考研英语（二）第四部分全文翻译

iresometechnological\rdevelopmentsthatatthemomentarenotavailable.z4EvaluationWarning:ThedocumentwascreatedwithSpire.PDFfor.NET.\rStill,theresearchmarksanotherchapterinthestoryofwater\ronMars,whichstretchesbackbillionsofyearsago,whenthe\rplanetwasstillyoung.Backthen,Marswasawateryworld.The\rplanetwassurroundedbyawarm,thickatmosphere.Fluffy\rcloudshunginthesky,andliquidwaterpooledonthesurface,\rsloshingaroundindeepcratersthatsitemptytoday.Research\rsuggeststhatMarsmayhavehadenoughwatertocoatafifth\roftheplanet.\rBCDEFGHIJ%!KLMNOP/QRSTUV0”XYU\rVZ[\]^I_--%`J7!(ab!!Z.7!cde\rfM"hijkM"%lP/m!(no1.5pqrst1\ru&vwxyzN{|M}M~€S‚ƒY.„%(\r†0"\r‡ˆ‰ŠM%‹Œƒ7ŽHUV'…%(f‘’“M%(\rf”•„–—˜™SMš›%(Vœƒ™ž0Ÿ› MUV\r7!(…¡¢0%(Vœ£¤¥w¦§¨©ª0«¬­®¯?\r°±²M³´…µ¶?·¸M?¹°±º!»¼½²¾¿0Œ\rÀÁMUV…ÂÃÄÅÆ%(VœÇÈ9!0