a coffee house keeper的用法和样例：
- He is a coffee house keeper.
- One Viennese admitted to me that being in a coffee house is like leaving the real world."You close the doors and all the troubles you have are forgotten.You leave them behind.
- His study is a chaos: his house keeper has long since given up trying to put his papers in order.
- They have a coffee break around 3 in the afternoon.