To avoid pregnancy, you should abstain from unprotected sexual intercourse during your fertile days.
在受孕期内做爱, 如果采取相应的安全防护措施就可以避免意外怀孕.
By knowing this it will help us to abstain from and avoid doing negative things.
了解这一点可以帮助我们放弃或避免造作恶业,同样地,如果我们只造作善业,这将会带来长久的善果.
Virtue consists, not in abstaining from vice, but in not desiring it.
He may abstain or even vote to make abortion illegal.
At the last election he abstained ( from voting / the vote ).