promise的用法例句：
1. The boy first showed promise as an athlete in grade school.
這個男孩在上小學的時候就初次顯示出成為運動員的潛力。
2. I'm hoping you'll keep your promise to come for a long visit.
我希望你遵守諾言來這兒多呆幾天。
3. President Kaunda fulfilled his promise of announcing a date for the referendum.
卡翁達總統兌現了他的承諾，宣布了全民公決的日期。
4. This approach, more than any other, holds promise for true reform.
這一方法比其他任何方法都更讓人看到真正改革的希望。