give oneself up to   (TTS發音)

not to hold oneself back from；let oneself enjoy；apply oneself wholly to 縱容；沉溺于；致力于；獻身于

    He gave himself up to a life of wandering. 他任其一生過著流浪的生活。

    He has given himself wholly up to the study of the subject. 他全身心地致力于這門學科的研究。