We had been visited in the night by flying squirrels, who don't seem to recognize humans for what they are because they've never seen them in the canopy before.
밤에 날다람쥐들의 방문을 받습니다. 이들은 인간이 어떤 존재인지 모릅니다. 인간을 본적이 없기 때문입니다.