例句與造句

1. The dollar rose briefly this morning when Japanese insurers bid for dollars at around 113 yen, prompting American fund managers to buy back what they sold yesterday to speculate on a fall, traders at Japanese banks said.
2. Japanese insurers buying dollars for investing overseas, and American fund managers who were buying back dollars they sold yesterday to speculate on a fall, triggered the rise which lasted less than an hour, traders at three Japanese banks said.
3. It's difficult to find speculate on a fall in a sentence. 用speculate on a fall造句挺難的