I do not have a clue.

我对这里一无所知。

The authors may be in this enviable state of enlightenment, but most readers will not have a clue what they are on about.

这两位作者也许自居启迪世人的地位，这很值得夸耀，然而大多数读者对其所述却全无线索。

The study also found that the average British person does not have a clue regarding the true value of their toiletry bag.

调查还发现，英国人一般都不清楚自己的洗漱化妆包的真实价值。

Thee study also found that the average British person does not have a clue regarding the true value of their toiletry bag.

调查还发现，英国人一般都不清楚自己的洗漱化妆包的真实价值。

We don't really have a clue yet, or not much of a clue, as to how you could even so much as begin to — it's not that merely that we don't have the details worked out.

毫无头绪，或者说，无从下手，你如何在这种情形下开个头，我们不只是不知道细节如何？