“蓝宝石”造句

他送给女友一枚镶着蓝宝石的订婚戒指。
He gave his girlfriend a sapphire engagement ring.

现在让我们考虑象钻石和蓝宝石这样的晶体.
Now let us consider crystals such as diamond or sapphire.

现在让我们考虑象金刚石和蓝宝石这样的晶体.
Now let us consider crystals such as diamond or sopphire.