Noun + 是 + 圆 + 的
The word 圆 (yuán) means "round" or "circle," used to describe circular shapes or the quality of roundness. It appears frequently in descriptions of the moon and in cultural contexts symbolizing completeness and unity. For example, 月亮是圆的 means "the moon is round."
月亮又大又圆,真好看。
Yuèliang yòu dà yòu yuán, zhēn hǎokàn.
The moon is big and round — it looks beautiful.
孩子用纸剪了一个圆。
Háizi yòng zhǐ jiǎn le yí gè yuán.
The child cut a circle out of paper.
这张桌子是圆的,坐起来方便聊天。
Zhè zhāng zhuōzi shì yuán de, zuò qǐlái fāngbiàn liáotiān.
This table is round, which makes it convenient for chatting.