I've worked very hard to pass this exam—luck doesn't come into it.

我为通过这次考试下了很大的苦功，运气不是主要的。

《牛津词典》

youdao

I think a lot of what people consider luck is attributed to how you respond to the opportunities that come your way.

我认为很多人们所说的运气取决于你如何应对出现在你面前的机遇。

youdao

It's always hard to tell who will break out, Dix said, noting that it can come down to luck sometimes.

CNN: Europe's search for the next Daniel Craig

Ahead of them are years of difficult decisions that will also need luck to come right.

BBC: Autumn Statement: Press reaction

Their thesis is that Microsoft's domination of the computer industry has come about more through luck than strategic brilliance or exceptional ruthlessness.

ECONOMIST: Microsoft