agate guide

例句：

1. 1. This agate guide is an essential tool for anyone who loves jewelry.
   这个宝石指南是任何热爱珠宝的人必备的工具。
2. 2. The agate guide provided in this book is incredibly detailed and informative.
   这本书提供的宝石指南非常详细且信息丰富。
3. 3.She consulted the agate guide before making her purchase.
   她在购买前查阅了宝石指南。