lack1/læk; læk/n [singular 单数, U]when there is not enough of something [ shortage ] 没有﹔缺乏﹔不足: +of She suffers from a lack of confidence. 她缺乏自信。for lack of sth The museum may be forced to close for lack of funds. 这间博物馆因为缺乏资金可能要被迫关闭。
lack2v [T] to not have something or not have enough of something 没有﹔缺乏﹔不足: The only thing she lacks is experience. 她唯一缺乏的是经验。