【森严壁垒】〖sn yán bì li〗[defence is iron-clad; sharply divided; strong defence, preparations; strongly fortified]

森罗宝殿堂，

严气正性刚。

壁里安柱稳，

垒块胸中藏。

军事戒备严密。比喻彼此界限划得很分明。Military guard tight. Metaphor each other limit well done very clear.同：戒备森严。