不要担心，肖，我不会让你失望的。

Don't worry, Xiao, I won't let you down.

《柯林斯英汉双解大词典》

我是来告诉你不要为我们担心，因为我们并没有淹死。

It was to tell you not to be uneasy about us, because we hadn't got drownded.

youdao

我告诉过你不要担心嘛。

See, I told you not to worry.

youdao

A few children went home and said, "I'm going to Japan tomorrow, but you don't need to worry, mom, 'cause I'm going to be home at 8 o'clock at night".

有些小孩回家后说：“，我明天要去,日本了，不过妈妈你不要担心，因为我会在8点钟回家。

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