Meaning of tí mù:
tí mù
题目
Noun
subject; title; topic (CL:個|个[ge4]); exercise or exam question (CL:道[dao4])
Zhè cì kǎoshì de tímù hěn nán.
这次考试的题目很难。
The subject of this exam is very difficult.
Zhè gè kǎo shì de tí mù hěn nán.
这个考试的题目很难。
The questions for this exam are very difficult.