diamond

The engagement ring featured a large diamond surrounded by smaller emeralds.

(Chinese) 这枚订婚戒指的特色是一颗巨大的钻石，周围镶嵌着较小的祖母绿。

Because diamond is the hardest natural substance, it is used to coat industrial saws.

(Chinese) 因为钻石是自然界最硬的物质，它被用来涂在工业锯片上。

In this card game, the ace of diamonds is the most powerful card in the deck.

(Chinese) 在这场扑克游戏中，方块A是整副牌中威力最大的牌。

She discarded a three of diamonds and picked up a king of hearts.

(Chinese) 她打出了一张方块3，然后抓起一张红桃K。