A BOUT JAPAN'S PATENT SYSTEM的用法和样例：
- She's still recovering from a bout of flu.
- She's still recovering from a bout of "flu".
- The old man still harps on a bout the death of his wife.
- I was very doubtful a bout the cost, but dared not give tongue to my fears.
- How does thd referee score a bout?
- That hill is a bout eight hundred metres high.