build high forts and dig deep ditches
The Chinese idiom g ā ol ě sh ē ng ō u in pinyin means to build a high barrier and dig a deep trench to defend. It's from Sun Tzu's virtual reality.
The origin of Idioms
"Sun Tzu · Xu Shi" says: "although the enemy is in a deep ditch, those who have to fight with us will be saved if they attack."
Discrimination of words
A wall built around a military camp. Trench: trench. Build high barriers and dig deep trenches.
Idiom usage
The seventh volume of the romance of the generals of the Yang family written by Wu Mingshi of Ming Dynasty: "since my father's nighttime dream is ominous and he can't stop fighting, how can I sit in his old division?"
build high forts and dig deep ditches
investigate sb . 's fault and try to punish him - yǐn shéng pī gēn
peach and plum trees vie with one another in the splendor of their blossoms - táo lǐ zhēng yán
numerous adversities and calamities - sān zāi liù nán
extraordinary talents and abilities - qí cái yì néng