zaniepokojony o 用英语:

The Grants' became concerned about their daughter's sanity and health.

People are concerned about global warming.

Yes the time capsule's items date from over 200 years ago, so the historians are concerned about opening it. The newspapers particularly might have deteriorated, decayed or decomposed over time.

I’m concerned about his eyesight.

My father is very concerned about my future.

I'm very concerned about the environment.

I was worried about looking stupid.

Our grandmother is always worried about us.

I'm worried about Jody - she seems really depressed.

Mr President, people are worried about climate change and its effects.