čudno in English:

Strange.

We found many strange plants in a botanical garden.

He sometimes makes me feel strange when we meet each other face to face.

Even though I felt that there was something strange, I just didn't know what it was.

I needed a lot of courage to try eating that strange food.

Everything happened very quickly and it was all very strange.

A face with too much make up looks strange.

People no longer consider it strange for men to let their hair grow long.

Private detectives were hired to look into the strange case.

If it's an aggressive strange salesman, then call me right away. I'll chase him off.

When I had to learn English in school, at times I would bemoan all the irregularities and strange rules.

Sentences? once more, the shopkeeper was confused by Dima's strange ramblings.

The map on page 11 looks very strange. Turn it upside down. Then it becomes a familiar map to you.

Using only "Tom" and "Mike" in many sentences is very strange.