Explanation: Yu overall collapse. Source: "May Fourth" patriotic movement data directly caused by Beijing Xinhua Zhang Ji, "state government buildings collapsing folding rafter in fear, to push the two flaps of the public to send gowns Su, dare not exhausted the knowledge of its concern, to make statements in good man."
No. 2
Cui, ancient means rafters, supported on the purlins and roof tiles of the wood. The overall collapse of the metaphor.
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No. 3
Yu overall collapse. "" 54 "patriotic movement data of Zhang Ji direct cause from Beijing": "status in the Government rafter collapse of buildings off the worry, in two public send gown pushed lapel of factors, which dare not exhausted by the knowledge into account, although made in good man."