translation.en: That's important, because although they are able to hear chainsaw noises up to a kilometer in the distance, allowing them to cover about three square kilometers, if someone were to take them, it would make the area unprotected.
translation.zh: 这点很重要，因为虽然 它们能接收电锯的声音， 最远可以达到1公里， 这样它们就可以覆盖 约3平方公里的区域， 但如果有人把它们取走， 就会导致该区域不在保护范围之内。