Subject：This is over my head.
迷你对话
A: I have a mathematics problem that I cannot solve. Please have a look at it.
我有一个数学难题解答不出来，请您帮我一下。
B: OK, wait a moment. Sorry, this is over my head.
好的，稍等一下。不好意思，这超出我能理解的范围。
