Actually, shotguns are very good home-defense weapons.
其实，散弹枪都是很好的家庭防御武器。
2
Cooking real food is the best defense, not to mention that any meal you're likely to eat at home contains about 200 fewer calories than one you would eat in a restaurant.
做真正的饭就是最好的保护，更不用说你在家里吃的每一顿饭都比在外面饭馆吃的饭要少约200卡路里。
3
If you count robots working outside factories in fields including medicine, defense, and home maintenance, there are more than 8 million of the machines worldwide.