a weapon of offense的用法和样例：
- Shrapnel is a weapon of mass destruction.
- Whether a gun is a weapon of offence or a weapon of defense depends on which end of it you are at.
- I watched with pride, as you grew into a weapon of righteousness.
- I watch with pride, as you grew into a weapon of righteousness.
- Many biblical accounts of the Ark seem almost to be describing a weapon of war.