| 摘 要： | ANomancanchangetheweather.Nobodycancontroltheweather.Butifwereadthesignscorrectlywecantellwhatthemoreimportantchangesintheweatherwillbe.Thiswayoftellingwhattheweatherwillbelikeonthefollowingdayortwoiscalledweatherforecast-ing.Peoplewhodothisarenotmakingtheweather.Theyaremerelyusingtheirknowledgeoftheweath-ertodaytotelluswhattheweathermaybeliketo-morrow.Peopleformanycenturiesandinallcountrieshavestudiedtheweatherandtriedtomakeweatherforecasts.Sometimesdistantobjectssuchashillsandtalltreesseem…
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