złe połączenie

Poor teaching combined with a lack of interest on my part was a bad combination.

A bad combination for a woman under the best of circumstances.

As you might imagine, then, speed and ice are a bad combination.

Nice kids, but a bad combination, and not exactly what I asked for.

For the 21,661 in attendance, it wasn't a bad combination of events.

It was a bad combination, especially for a man in his forties.

Takes some getting used to, but ultimately, not a bad combination.

It's been a bad combination over the last couple of weeks - or you could probably go back even further.

"I figure it'd have been hard to live with you; we'd be a bad combination."

I have yet to try a bad combination, but some are more appealing than others.