5 sentences

1. 书包里头有很多书。

   shū​bāo lǐ​tou yǒu hěn​duō shū.

   There are many books inside the schoolbag.

   Source: Dong Chinese Dictionary

2. 里头最好吃的就是豆子了。

   lǐ​tou zuì hǎo​chī de jiù shì dòu​zi le.

   Beans are the best part.

   Source: OpenSubtitles

3. 他住在胡同尽里头的一间房子。

   tā zhù zài hú​tòng jǐn lǐ​tou de yī jiān fáng​zi.

   He lives in a room at the very end of the alley.

   Source: Dong Chinese Dictionary

4. 我们不知道他往里头放了什么。

   wǒ​men bù zhī​dào tā wǎng lǐ​tou fàng le shén​me.

   We don't know what he put in it.

   Source: OpenSubtitles

5. 里头太热了。

   lǐ​tou tài rè le.

   It's too hot in there.

   Source: OpenSubtitles