1. He began to dubitate about his decision to quit his job and start his own business.
他开始对自己辞去工作、创业的决定产生怀疑。

2. The committee dubitated over whether to approve the new policy or not.
委员会对是否批准新政策产生了犹豫。

3. She dubitated for a moment before finally agreeing to go on the trip.
她犹豫了一会儿后，最终同意参加这次旅行。