We're out in the field, on spotting scopes, watching these animals as they're approaching brand-new structures.
“我们在野外用望远镜观察这些动物靠近新建筑结构的情况。
经济学人(汇总)
Birdwatching as a pastime has emerged only in the past two decades, helped by rising incomes that have allowed people to buy spotting scopes, binoculars and cameras.
A spotting scope is a small portable telescope with added optics to present an erect image, optimized for the observation of terrestrial objects. They are used for birdwatching and other naturalist activities, for hunting, verifying a marksman's shots, surveillance, and for any other application that requires more magnification than a pair of binoculars, typically on the order of 20× to 60×.