钻石沙

例句：

1. 1. The diamond sand is a preciousmaterial that shines brilliantly under thesun.
   钻石沙是一种珍贵的材料，在阳光下闪耀着耀眼的光芒。
2. 2. The diamond sand was usedto polish the jewellery in ancienttimes.
   钻石沙在古代被用来打磨珠宝。
3. 3.The diamond sand was found on the beach, and it was believed to have beenbrought there by a shipwreck.
   钻石沙在海滩上被发现，人们认为它是由一艘沉船带来的。