In a painfully typical example, several U.S. scientists and ornithologists spent eight years trying in vain to repopulate Maine with the Puffin, which had been wiped out by hunters in that state 80 years earlier.
許多美國科學家和鳥類學家花了八年時間，才使一種名叫「寶芬」的海鳥回到北美緬因州居住。