unsure怎么读，是什么意思，单词翻译、读音

I'm unsure about what to do next - can you help me? 我有点儿拿不准下一步该做什么——你能帮帮我吗？

unsure of yourselfC2 对自己没有信心

without confidence in yourself

As a new teacher I was very unsure of myself when I was in front of a class. 作为一名新教师站在全班面前时，我很不自信。