sān​zuò​dà​shān

the three big mountains

三座大山 sān​zuò​dà​shān
the three big mountains
The three oppressive forces of imperialism, feudalism, and bureaucratic-capitalism in pre-1949 China
three major burdens
Three heavy burdens or obstacles, commonly used in modern contexts to refer to the high costs of housing, education, and healthcare

Frequency

Written text
0.651 per million

Sources

Frequency data
BCC Corpus (BLCU)