1、The precious stone is diamond.
這種貴重的石頭就是鉆石。

2、And he threw the precious stone into the water.
說罷，他把珍貴的寶石扔進了水里。

3、One is topaz, the precious stone and the other is truffle itself.
其一是黃玉本身，是一種寶石，而另一種則是塊菌。

4、What about a necklace set with a heartshaped precious stone ?
買條項鏈怎么樣？墜有心型寶石的。？

5、In one's life, everyone is assigned a precious stone which called birthstone.
每個人一生中都會有一塊屬于自己的寶石，這塊寶石也就是生辰石。