He dedicated most of his time to charity work.

He dedicated most of his time to charity work.
    他大部分時(shí)間都致力于慈善工作。
    dedicate表示把時(shí)間或精力等用在...，用在哪方面就用介詞to。 dedicate的名詞是 dedication,表示對(duì)某事的熱誠(chéng)和獻(xiàn)身。
    例：
    Her dedication to education.她對(duì)教育的熱誠(chéng)付出。
    He dedicated his life to science.他獻(xiàn)身于科學(xué)。