a triplex house的用法和样例：
- We live in a triplex house of a multilayer apartment.
- He took out a fire insurance policy for his house.
- The triplex houses have a total area of approximately 3,100 sq ft, with four bedrooms and two en suites. There will be 31 of these in The Vineyard.
- Buying a house is the best hedge against inflation.
- The dog kept a vigilant guard over the house.