How to pronounce “abstruse” in English

The abstruse concept of an equation breaking down can be appreciated by the reader either by pulling out a calculator and dividing one by zero,

There were even abstruse puzzles that attempted to explain Kurt Godel's Incompleteness Theorem, but it was above my head at that age.

Now this covers some pretty sophisticated physics, and abstruse mathematics, but Greene presents it in a way

And so although it seems incredibly abstruse, this hard core biochemistry, it really is a kind of explanation that underpins all of life.

So it's probably, on the face of it, a really stupid thing to write a book about because it's a piece of abstruse biochemistry that anybody who

What science does is it provide laws I suppose, the laws of physics, whatever it may be, that seem very abstruse