Sterling aluminium solder

例句：

1. 1.The sterling pound is the currency used in Great Britain.
   英镑是大不列颠使用的货币。
2. 2. He bought a sterling silver watch for his mother's birthday.
   他为母亲的生日买了一枚纯银手表。
3. 3.The sterling exchange rate has been fluctuating recently.
   最近，英镑的汇率一直在波动。