on the fence   (TTS發音)

in doubt；undecided遲疑不決的；保持中立的

    You have been on the fence for too long. It's time you made up your mind. 你猶豫的時間太長了，該下決心了。

    Philip used to sit on the fence before deciding which side he would be on， but he was looked down upon by others. 菲利浦過去總喜歡在做決定支持哪一方之前觀望，但他也總被他人瞧不起。