He is devoted to educating the younger generation, teaching by precept and example, content to be, so to speak, a rung of the human ladder.是什么意思_He is devoted to educating the younger generation, teaching by precept and example, content to be, so to speak, a rung of the human ladder.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句