翻译下面的英语,要详细一点,准确一点（九年级英语）
MedicalexpertssaymostAmericansdonotgetenoughsleep.TheysaymoreAmericansneedtotakeanap—thatistorestforashortperiodinthemiddleoftheday.Theygivepeopleadvicetosleeplightlybeforecontinuingwithotheractivities.Theexpertssaynapsmightimprovehealthbyreducingpressure.
SomeEuropeanandLatinAmericancompanieshavesupportedtheideaofnappingformanyyears.Theyaskpeopletoleavework,gohomeandhaveanapbeforereturning.IntheUnitedStates,somecompaniesletworkersrestsimplyintheiroffices.Theybelievethiscanhelpworkersmakefewermistakesandalsoincreasetheamountofworkthatapersoncando.
Sleepexpertssayitislikelythatpeoplemakemoremistakesatworkthanatothertimes.Theysaypeopleshouldnotcarryoutimportanttaskswhentheyfeelsleepy.Andtheysaythebestthingtodoistotakeanap.Abouttwentyminutesofrestisallyouneed.Expertssaythisprovidesextraenergyandcanincreaseyoureffectsuntiltheendoftheday.Butexpertssaidthatanapshouldlastnomorethantwentytothirtyminutes.Alongernapwillputthebodyintodeepsleepandwakingupwillbedifficult.
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