他妈妈给他介绍了一位姑娘。

Tā māma gěi tā jièshào le yí wèi gūniang.

His mom introduced him to a young woman.

她是一个好姑娘。

Tā shì yí gè hǎo gūniang.

She’s a good girl.

你看起来像个18岁的小姑娘啊。

Nǐ kànqǐlái xiàng gè shíbā suì de xiǎo gūniang a.

You look like an 18-year-old girl.