英语语法分析

There are five options for the gemstone: blue topaz, opalite, onyx, sapphire and ruby.

有五种宝石供选择，分别是蓝色托帕石、不纯蛋白石、缟玛瑙、蓝宝石和红宝石。

For one, the Italy-made ring is plated with either 18K gold or silver, and there are five options for the gemstone: blue topaz, opalite, onyx, sapphire and ruby.

首先，这款意大利制造的戒指镀有18K金或银，此外还有五种宝石供买家选择，分别是蓝色托帕石、不纯蛋白石、缟玛瑙、蓝宝石和红宝石。