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根据第一段Edgar McGregor, a 20-year-old climate activist, spent 589 days picking up litter from Ealon Canyon, which is a part of the Angeles National Forest in southern California.Edgar McGregor,一个20岁的气候活动家,花589天在南加州洛杉矶国家森林的一个地方埃隆峡谷捡垃圾,可知...