The paramedics told the crowd to stand back.护理人员让人群往后站。
2
:to stop doing something or being actively involved in something for a time so that you can think about it and make decisions in a calm and reasonable way置身事外(来考虑)
It's time to stand back [=step back] and take a long hard look at your problems.是时候置身事外并好好反省你自身的问题了。