旧窗帘上装饰着 subtle（不明显的）菱形图案。

The old curtains were decorated with a subtle ___diamond pattern.

路上的警告标志是一个黄色的菱形。

The warning sign on the road was in the shape of a yellow ___diamond.

她在正方形和圆形旁边画了一个完美的菱形。

She drew a perfect ___diamond next to the square and the circle.