They’ve done so every year since the now-global tradition began 25 years ago.(上周五,当大后院鸟类大统计开始时,肯塔基州哈特县的Steve和Janet Kistler也加入了进来。自25年前这一全球传统开始以来,他们每年都会这样做)”和第三段的“It’s part of a rise in “citizen science” projects in which ...
WhentheGreatBackyardBirdCount(GBBC)beganlastFriday,SteveandJanetKistlerofHartCounty,Kentucky,joinedin.They'vedonesoeveryyearsincethenow-globaltraditionbegan25yearsago.ForMoiraDalibor,whoteachesmathataschool,thiswasthefirstcount.Sheledagroupofstudentsandparentstoanarboretum(植物园)foranexerciseindata-gathering....
When the Great Backyard Bird Count (GBBC) began last Friday, Steve and Janet Kistler of Hart County, Kentucky, joined in. They’ve done so every year since the now-global tradition began 25 years ago. For Moira Dalibor, who teaches math at a school, this was the first count. She led...