But some historians suggest that the inclusion of opponents may not have been as smart an idea as Lincoln had hoped.

VOA: special.2009.02.09

Opponents of animal testing are quick to point out that it's not a humane way to learn scientific facts.

动物实验的反对者很快就指出，利用这种方法得到科学事实是不人道的。

需要动物实验吗？ - SpeakingMax英语口语达人

In a poker game you do not want to let your opponents know if your cards are good or bad.

VOA: special.2009.11.22

The red, pink, cyan, and orange Pac-Ghosts are not really opponents (in the sense that they are not trying to outplay you or compete toward the same ends).

FORBES: Against Tranquility! Pac-Man, Time Management, and Distractions.

And they insist that they want to talk about what they stand for, not their opponents' weaknesses.

CNN: By Stuart Rothenberg/

America may find it has to promise that the new Iraq will honour those debts and that, even if old oil contracts are not honoured, opponents of the war will not be excluded from new contracts.

ECONOMIST: Who will run the new Iraq? | The