być w gotowości v angličtině:

the company agreed to stand by its original commitment

Important to stand by each other

I need you to stand by and answer the phone when my broker calls.

People may stand by when someone else is getting hurt.

Whatever you decide to do, I'll stand by you all the way.

She has vowed to stand by her husband during his trial. / We can’t stand by while millions of people starve.