Example sentences
shū书zài在bāo包lǐ里。
The book is in the bag.
jiā家lǐ里méi没rén人。
No one is home.
The story behind the character
里
The traditional 裏 is 衣 (clothing) with 里 inside. It meant the lining of a garment. So the 里 in "inside" was once the inner lining of a coat.