(最) + 聪明 + 的 + Noun
The adjective 聪明 (cōngming) means "clever" or "smart" and is used to describe a person's intelligence. It can appear in superlative constructions with 最, as in 最聪明的女孩 (the cleverest girl).
她是我们班最聪明的学生。
tā shì wǒmen bān zuì cōngmíng de xuéshēng.
She is the smartest student in our class.
这只小狗特别聪明,什么都能学会。
zhè zhī xiǎo gǒu tèbié cōngmíng, shénme dōu néng xuéhuì.
This little dog is especially smart; it can learn anything.
你真聪明,一下子就想到了办法。
nǐ zhēn cōngmíng, yíxiàzi jiù xiǎngdào le bànfǎ.
You're so clever, you thought of a solution right away.