我的朋友比尔是个成功的演说家和作家,喜欢在闲暇时间观察鸟类。几年前,比尔买了一幢新房子,附近草木葱茏。入住后的第一个周末,他就在后院里装了个喂鸟器。就在当天日暮时分,一群松鼠弄倒了喂鸟器,吃掉了里 My friend Bill is a successful orator and writer and enjoys watching birds in his free time. A few years ago, Bill bought a new house with verdant vegetation. On the first weekend after his stay, he put a bird feeder in the backyard. Just the same day at sunset, a group of squirrels knocked down the bird feeders and ate them