Xuéxiào / jǔbàn / le / jièshào / Guō / Yǒng / huái / shēngpíng / hé / gòngxiàn / de / zhǎnlǎn学校举办了介绍郭永怀生平和贡献的展览。The school held an exhibition about Guo Yonghuai's life and contributions.