自學
After several years' self study he acquired a great deal of knowledge. 經(jīng)過幾年的自學,他獲得了不少知識。
Alexander, my grandfather, made me ashamed of my ignorance and weakness of education by personal study. 我的祖父亞歷山大使我為自己的無知和對自學的弱能感到羞愧。