没时间给你写文章，英国这边天天写文章都还写不完。不过给点要点你自己扩写吧 带来的问题：easily begin a war in the street,harmful when discharge accidentally,encourage people go hunting and it's not good for animals,not easy for the government to chontrol people. 可以解决的问题：don't put gunpower in it,give publicity on peace... 剩下自己搞定我没辙
没时间给你写文章，英国这边天天写文章都还写不完。不过给点要点你自己扩写吧
带来的问题：easily begin a war in the street,harmful when discharge accidentally,encourage people go hunting and it's not good for animals,not easy for the government to chontrol people.
可以解决的问题：don't put gunpower in it,give publicity on peace...
剩下自己搞定我没辙