If you read one of the websites that I like to look at, Psycho Palisades, and palisades describe the strong fence that protect you from being torn down.

如果你到我喜欢去的一个网站去看看，叫做心理护栏，护栏形容的是那些强大的篱笆,保护你不被打倒。

麻省理工公开课 - 媒体、教育、市场课程节选

However, I believe that, although I'm kind of on the fence,

尽管我现在不能做出认不认同的选择，但是

对于安乐死的看法 - SpeakingMax英语口语达人

And so ultimately one of the messages we'd like to send today is that if you are the type who's kind of on-the-fence don't think this is for you, worried about hurting your GPA or anything like that.

最终，我们想告诉你们的是,如果你是那种对分数不太在意的人,这种打分制就不是为你准备的，担心影响你的学分绩点之类的东西。

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You're not allowed to be on the fence here.

好，我给你们十秒，十五秒去思考。

麻省理工公开课 - 热力学与动力学课程节选