It is very persistent not to lose these habits.

它非常执着，不愿意丢掉这些惯性。

youdao

Reality is an illusion; albeit a very persistent one.

现实即幻象，只是非常稳定罢了。

youdao

Reality is merely an illusion, albeit a very persistent one.

所谓真实就是一种幻觉，一种很顽固的幻觉。

youdao

"Turkey's persistent denial and inability to face, or unwillingness to face up to its history is very disruptive in all kinds of ways - in terms of international relations, in terms of its own internal politics - and it also prevents it from really recognizing how do you deal with minorities."

VOA: standard.2010.03.19

But also a very persistent one, despite there being clear evidence that it is not.

FORBES: Management myths

Similarly, there are quite a few myths in business that are very persistent, despite clear evidence exposing them.

FORBES: Management myths

I've had cases where men are very persistent and spend a big part of the night bugging you.

BBC: How safe do women feel on a night out?