(1) vote against意为“投票反对”，其反义词是vote for。

• The politician was deeply hurt when many of his former supporters voted against him, and he lost his place in parliament.
  当他的许多前支持者投票反对他的时候，这位政治家元气大伤，失去了他在议会中的位置。
• They shall vote against building a road here.
  他们将投票反对在这修一条公路。

 (2) vote down指“投票否决”。

• In spite of the chairman's support, the suggestion was voted down by the rest of the committee.
  尽管有主席的支持，这项建议还是被委员会的其他人否决了。
• I guess the committee will vote it down .
  我猜委员会将否决它。

 (3) vote out意为“投票使下台(有时用vote out of office)；投票使(议案等)不被通过”。

• After so many years' service, it was a shock when the chairman was voted out .
  在服务这么多年后，这位主席被票选下台，实在令人吃惊。
• Your suggestion has been voted out . Try again next year.
  你的建议已被投票否决，来年再努力吧。