devote to do
give（oneself,one's time,etc．）freely to,dedicate to 致力于；獻身于
She has devoted herself to the medical science．她一直致力于醫(yī)學研究.
contribute to
1．give（money or time）to；supply（written materials）to 捐（款）；把（時間）投入；投（稿）
2．help to bring about；have a share in 貢獻；有助于
All these factors contributed to his success．所有這些因素促使他成功了.