1 (formal 正式)abstain (from sth/doing sth) to stop yourself from doing sth that you enjoy 节制；克己；戒除: The doctor said I should abstain from (drinking) alcohol until I'm better. 医生说，我病情好转以前应当戒酒。 ☞noun abstinence 名词为 abstinence

2 (in a vote) to say that you are not voting either for or against sth （在投票中）放弃投票权；投弃权票: Two people voted in favour, two voted against and one abstained. 两人投赞成票，两人投反对票，一人弃权。 ☞noun abstention 名词为 abstention