搜集

历史学者历时十年走访大江南北，搜集到了大量极其宝贵的民间抗战史料。

lì shǐ xué zhě lì shí shí nián zǒu fǎng dà jiāng nán běi, sōu jí dào le dà liàng jí qí bǎo guì de mín jiān kàng zhàn shǐ liào.

Historians spent ten years traveling across the country and collected a large amount of extremely valuable historical materials on the civil war.