Definition
An expression used to reassure someone that there is no need to be anxious or upset about a problem or unexpected event.
不用担心
Not to worry, we still have time to catch the train.
别担心，我们还有时间赶上火车。
Oops, I spilled my coffee. Not to worry, I’ll clean it up.
哎呀，我把咖啡洒出来了。别担心，我会清理干净。
Your report isn't ready? Not to worry, I can help you finish it.
你的报告还没准备好？别担心，我可以帮你完成。