piece of money

例句：

1. 1. He gave me a pieceof money as a gift.
   他给了我一块钱作为礼物。
2. 2. The shopkeeper asked fora piece of money before he would giveus the goods.
   店主要求我们付一块钱才给我们货物。
3. 3. The old man hadsaved up a piece of money for hisgrandson's education.
   老人为孙子的教育攒了一块钱。