a ratty house的用法和样例：
- He took out a fire insurance policy for his house.
- She pulled a ratty bandanna out of her pocket and wiped away the worst of the dust that covered it.
" / 她把一个像老鼠的丝巾从她的口袋拉出来而且扫除涵盖了它的灰尘最坏。
- Buying a house is the best hedge against inflation.
- If I’m in a ratty mood during the workday, it’s usually because I’ve been at my desk writing for too long without moving around.
- The dog kept a vigilant guard over the house.