① devote oneself to sth./doing sth.表示“獻身于,致力于”。
She devoted herself to music. 她專心研究音樂。
He devoted himself to helping the poor. 他致力于幫助窮人。
② devote sth. to sth./doing sth.表示“把……用于,把……貢獻給”。
He devoted all his time to the study of physics. 他把全部時間都用于研究物理。
He devoted his life to studying English grammar. 他一生致力于研究英語語法。
③ contribute to sth.意為“為某事出一份力,為某事捐款,有助于”。
All the students in the school contributed to the building of the bridge. 這所學校所有的學生都為建造這座橋捐了款。
The heavy snow in winter contributes to the growth of wheat. 冬天的大雪有助于小麥的生長。