Don't panic-- it's the tough core of the pineapple, not the prickly skin that you should tuck into.

别惊恐——你应该吃的是菠萝坚硬的果核，而不是多刺的外皮。

youdao

Don't panic! There is no danger.

不要慌张！没有危险。

《新英汉大辞典》

Keep calm! Don't panic!

沉住气，别慌！

《新英汉大辞典》

This is discussed in detail in the textbook Don't panic if you don't get it quite now.

这在教材中已有详细的叙述,如果一下子理解不了也不用担心。

耶鲁公开课 - 心理学导论课程节选

If you're in that category, don't panic, you're going to get it.

如果你属于这种人，别灰心，你会成功的。

麻省理工公开课 - 计算机科学及编程导论课程节选

If you have not seen the calculus that I'm about to use on the board, or more likely, if you've forgotten it since high school, don't panic.

如果你们没有见过我将要,在板书上写的表达式,或者说,高中毕业你们就忘了,没关系

耶鲁公开课 - 博弈论课程节选

If your child has been exposed to one of the recalled toys, don't panic.

CNN: How to take away recalled toys with fewer tears

"We're a veteran ballclub so we don't panic, " Jason Kidd said.

WSJ: Celts top Knicks 97-90 in OT, avoid playoff sweep

If that sounds like a lot of money, don't panic.

CNN: How to protect your family's finances