同学你好，该知识点来自沪江网校《【Uni智能】雅思7分名师VIP-大学起点【6月签约班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学你好。

当你没有听懂时可用

▶Could you please paraphrase （转述）that question/topic?

▶I’m not exactly sure what you mean +某一个生词…或者当你听到这个词不是很确定其意思的时候也可以用

补充一下：
考官的问题不熟悉或完全没有听说过时可用

▶ I’m not exactly sure how to answer that question, but (perhaps+加点你知道的一点皮毛，或是你听别人说的而已

▶ That’s rather difficult question, but I wonder if could give me more information about that.

▶ I’m sorry, but I don’t know much about…

希望有帮助到你~