1.That country is a bulwark of freedom.

1.那个国由堡垒。

2.Law and morality are the bulwark of society.

2.法律和道德社会防御工具。

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

3.民支持御敌强大力量。

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

4.由椴木建造船体上覆盖木板，镂空舷墙和甲板。