- 问题详情:Naturerespondstoclimateunderstandit,weneedtomonitorkeylifecycleevents—flowering,theappearanceofleaves,thefirstfrogcallsofthespring—allaroundthescientistscan’tbeeverywheresothey’returningtononscientists,sometimescalledcitizenscientists,forhel...
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