你的皮肤好光滑啊！

Nǐde pífū hǎo guānghuá a!

Your skin is so smooth!

这衣服材料很光滑。

Zhè yīfu cáiliào hěn guānghuá.

The fabric of this clothing is very smooth.

这几狗的毛很光滑。

Zhè jǐ gǒu de máo hěn guānghuá.

The fur on these dogs is very smooth.