A survey published by the research group ComRes on Tuesday said 2.5 million people who say they are certain to vote say they are still undecided who to vote for and more than a third of voters said it was "quite possible" they would change their mind on who to vote for by the time the polls open Thursday morning.

VOA: standard.2010.05.05

And he writes, for example, to Mary: "I am moreover undecided whether I ought to continue to hold slaves."

于是他便写给玛丽,比如这段,"我无法确定,我是否该继续拥有那些奴隶"

耶鲁公开课 - 美国内战与重建课程节选

And he writes, for example, to Mary: "I am moreover undecided whether I ought to continue to hold slaves."

于是他便写给玛丽,比如这段,"我无法确定,我是否该继续拥有那些奴隶"

耶鲁公开课 - 美国内战与重建课程节选