The manual is full of the jargon and slang of self-improvement courses.手冊(cè)里滿(mǎn)是有關(guān)自修課程的行話(huà)術(shù)語(yǔ)。Spirit of Yidelong: Solidarity, struggling, practicality, innovation and ceaseless self - improvement .益德隆的精神: 團(tuán)結(jié), 拼博, 求實(shí), 創(chuàng)新, 自強(qiáng)不息....