比尔是个著名的作家,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,吃掉里面的食物,把小鸟吓得四散而去。在接下来的两周里,比尔绞尽脑汁想出各种办法让松鼠远离喂鸟器,就差没有使用暴力了。但丝毫不起作用。万般无奈之下,他来到当地一家五金店。在那儿他找到了一种与众不同的喂鸟器,带有铁丝网,还有个让人动心的名字,叫“防松鼠喂鸟器”。这 Bill is a famous writer who likes to watch 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 the food inside, scaring the bird away. Over the next two weeks, Bill racked his brains to figure out ways to keep the squirrels away from the bird feeders, without using violence. But it does not work. In desperation, he came to a local hardware store. There he found a distinctive bird feeder with a barbed wire and a tempting name, “Squirrel Feeder.” This