sterling security

例句：

1. 1. The sterlingsilver necklace is worth a fortune.
   纯金项链价值连城。
2. 2. The British pound is theofficial currency of the United Kingdom.
   英镑是英国官方货币。
3. 3. The sterling exchange ratehas been steadily increasing.
   英镑兑美元的汇率一直在稳步上升。