Traditional: 裡頭
里头 (lǐ tou) means “inside; interior”. It is an HSK 2 Chinese word (traditional 裡頭) in the HSK 3.0 vocabulary.
Practice each character:
房间里头很暖和。
Fángjiān lǐtou hěn nuǎnhuo.
It's warm inside the room.
Updated: 2026-07-18