不要插队怎么说用英语

"Don't cut in line" means "don't jump ahead of other people who are waiting in line." It is a way of reminding someone to follow the rules of waiting their turn and not trying to get ahead of others.
Here are a few other ways you could say this in English:
"Wait your turn"
"Don't try to skip the line"
"Respect the queue"
"Stay in your place in line"
"Don't jump the queue"