a spiffy time的用法和样例：
- Fruit juices ferment if they are kept a long time.
- This online generator creates a spiffy drop down menu with as many options as you need.
- The first ball was a clunky 700-pound, iron-and-wood number and was adorned with just 100 25-watt light bulbs.In 1920, a spiffy new 400-pound ball replaced the original.
- A transistorize radio takes no time to warm up.