bulwarks

That country is a bulwark of freedom.

国家是自由的堡垒。

Law and morality are the bulwark of society.

法律和道德是社会的防御工具。

Our people’s support is a bulwark against the enemy.

人的支持是御敌的强大力量。

Solid hull construction of basswood, planked over topsides, built-up bulwarks and laid deck planking.

由椴木建造的坚实的船体木板，镂空的舷墙和甲板。