lack[læk] n.1.缺乏,短缺,不够2.没有3.缺少的东西;需要的东西vt.1.缺乏,没有: The committee lacked a correct estimate of his ability. 委员会对他的能力缺乏正确的评价. 2.不足,不够,缺少: We must note that some of the imported films lack artistic quality. 我们要注意有些进口影片艺术性不够强. 3.[废语]需要;需求vi.1.缺乏,缺少,欠缺: The child seems to be lacking in intelligence. 这孩子似乎缺乏智力. 2.不及,不足;短少;达不到: Capital is lacking to carry on the project. 资金不足,无法将这项工程进行下去.
lack做动词是及物动词。例句 . Also, robots lack a sense of humor, and a good presentation should have at least some entertainment value. 而且机器人缺乏幽默感,出色的讲演至少应该具备一些娱乐价值