肥水不落外人田 féishuǐ bù luò wài rén tián

féishuǐ bù luò wài rén tián set phrase do not let fertile water pass to other people's fields
Domain: Proverb 谚语 , Subdomain: , Concept:
Notes: Do not let the advantage fall to outsiders (Guoyu '肥水不落外人田')