The strong smell of the ammonia will irritate the squirrels and make them view the attic as a bad place to nest. This may get them to leave on their own.  It’s best to use this repellent alongside others to maximize its effectiveness. If you don’t have ammonia, you can use another strong household cleaner instead. You can use the overhead light or install temporary lighting if there’s no light in the attic. The squirrels will feel uncomfortable and exposed under the lights, so they’ll likely leave your attic in favor of a new home.  Just like with ammonia, it’s best to use this repellent alongside other techniques to increase your chances of success. If you know exactly where the squirrel nest is, you can direct the light toward the nest. In this case, you only need a flashlight to get the job done. Turn the radio to a talk station so the sound of human voices fills the attic. The squirrels will likely decide your home is unsuitable, causing them to go elsewhere.  If you find the nest, put the radio as close as you can to the nest. You don’t need to turn up the radio loud enough for the entire house to hear. As long as the sound fills the attic, the radio is loud enough. Using multiple repellents at one time will provide the best results. You can choose between a natural or chemical repellent. Natural repellents often use the scent of predator urine to scare away the squirrels. Read the label on your repellent and apply it directly to the area where the squirrels seem to frequent, such as near entry holes, around urine and feces, and where you see tracks.  Make sure you’re using the product as directed. You can find a squirrel repellent at a hardware store or online. Additionally, they may not work against squirrels and have a very strong smell that many people find offensive. It’s safer and more effective to use one of the proven squirrel repellents. In some areas, mothballs are illegal to use against squirrels, so check your local laws if you’d like to use them anyway.

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Write a summary of the previous text in Chinese:
将浸过氨水的抹布放在松鼠窝附近。 打开阁楼的强光。 在阁楼放置一台音量开得很大的收音机来骚扰松鼠。 使用简单方便的市售松鼠驱逐剂。 不要使用樟脑丸，因为它们对人类和宠物有毒。