single-column pence coding

例句：

1. 1. She spent the entire day collecting pennies for charity.
   她花了一整天的时间为慈善活动收集硬币。
2. 2. The old man had a small collection of pennies in his pocket.
   这位老人口袋里有一小堆硬币。
3. 3. The children were given a handful of pennies as a treat.
   孩子们得到了一些硬币作为奖励。