a bounty on exports的用法和样例：
- These subsidies acted like a bounty on exportation in favour of the English, and were detrimental to the German manufactories.
- "It's a bounty on the head of his own son, Niven," I said aloud.
- The government has placed a bounty on the heads of many of its opponents.
- Cash Bounty places a “bounty” on the units and structures within a small radius.