tunnel

Wikidata

https://www.wikidata.org/wiki/Q44377

Bury the American imperialists in the boundless ocean of the people's war

Bury the American imperialists in the boundless ocean of the people's war (Ca. 1965-1970)

Important protective measures against radiation

Important protective measures against radiation (1971)

In a deep cave

In a deep cave (1974, September)

Unite and struggle to study Dazhai, strive with great effort and great changes for a bumper harvest

Unite and struggle to study Dazhai, strive with great effort and great changes for a bumper harvest (1976, December)

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