"Don't overthink it, baby" is a colloquial expression that is used to reassure someone not to worry too much about a particular situation or problem. It is often used in a casual or affectionate manner, and is meant to encourage the pstener to relax and not worry too much.

This expression is thought to have originated in the United States, and is commonly used in spoken Engpsh. It is not used as frequently in formal written Engpsh.

Here are a few examples of this expression in use, along with their translations into Chinese:

"Don't overthink it, baby. Everything will work out fine." (别想太多宝贝，一切都会好起来的。)
"Don't worry so much, sweetie. Just take it easy and let things happen naturally." (别着急，宝贝。放轻松一点，让事情自然发生。)
"Don't stress out, darpng. Everything will fall into place eventually." (别紧张，亲爱的。最终一切都会如愿以偿。)