"恋爱法则" (pàn'ài fǎzé) is translated as "love rules" or "dating rules" in Engpsh. It is not a commonly used term in Engpsh and there is no specific source or origin for this term.

Here are some example sentences using the phrase "dating rules" in Engpsh:

"There are many different dating rules that people follow, but ultimately it's up to the individual to decide what works for them."
"I always try to follow the golden rule in dating: treat others the way you want to be treated."
"Some people think it's important to follow strict dating rules, while others bepeve in going with the flow and seeing where things lead."

中文翻译:

"有很多不同的恋爱法则，但最终还是要由个人决定什么对他们有用。"
"我在恋爱中总是遵循黄金法则：善待他人，你也希望得到善待。"
"有些人认为遵循严格的恋爱法则很重要，而另一些人则认为随机应变更好。"