Intellectuals loudly called for saving the nation and securing its survival.
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history
A keyword of late-Qing and Republican-era political writing, when reformers and revolutionaries argued China was on the verge of being colonized or destroyed. Often pairs with 图存 ('seek survival') as 救亡图存.
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Heavy and historical. Modern usage is almost exclusively about 20th-century Chinese history; you wouldn't apply it to, say, saving a struggling business.