bullion and foreign currencies

例句：

1. 1. The value of bullion has increased significantly in recent years.
   近年来，贵金属的价值显著增加。
2. 2. Gold is often used as a store of wealth due to its durability and scarcity.
   由于其耐用性和稀缺性，黄金常被用作财富储存。
3. 3.Bullion dealers are responsible for the safe storage and exchange of precious metals.
   金银交易商负责贵金属的安全存储和交换。
4. 1. The country's economy is heavily influenced by foreign trade.
   该国经济受到对外贸易的严重影响。
5. 2. Many people travel abroad to experience different cultures.
   许多人出国旅行以体验不同的文化。
6. 3. Foreigners are not allowed to enter the restricted area without authorization.
   未经授权，外国人不得进入限制区域。