Don't have a cow 别大惊小怪
Don't make a fuss

例句：
 

Don't have a cow,I'll pay for the damages.
别大惊小怪，我会赔偿损失的。

Don't have a cow-It's no big deal.
别着急，没什么大不了的。

Don't have a cow,I promise I will pass the exam next time.
别生气，我保证下次一定通过考试。
 

背景音乐：
Jane Monheit-Look for the sliver lining