abstain  
verb [ I ] uk/æbˈsteɪn/ us/æbˈsteɪn/
  (NOT DO)      
  节制;戒绝(尤指不好的享乐)
to not do something, especially something enjoyable that you think might be bad
 abstain from He took a vow to abstain from alcohol/smoking/sex. 他发誓戒酒/戒烟/禁欲。 
   (NOT VOTE)      
  弃权
to decide not to use your vote
  63 members voted in favour, 39 opposed, and 15 abstained. 63名成员投票赞成,39票反对,15票弃权。 
   (STAY AWAY)      
 Indian English不工作;拒绝工作 
to stay away from work
  During a recent general strike, employees of all major trade unions abstained. 在最近一次大型罢工期间,所有大型工会的成员都拒绝工作。