/ɪnˈθju:ziæzəm; US -ˈθu:- ||; ɪnˈθuzɪˌæzəm/noun [U]: enthusiasm (for/about sth/doing sth) a strong feeling of excitement or interest in sth and a desire to become involved in it 热忱；热心: Jan showed great enthusiasm for the new project. 简很热衷于这个新计划。