士兵们被要求定期检查他们的武器。

Soldiers are required to inspect their ___weapons regularly.

知识是她对抗职场歧视的最有力武器。

Knowledge is her most powerful ___weapon against workplace discrimination.

螃蟹的钳子是其主要的防御武器。

The crab's ___weapons are its strong claws for defense.