biological weapon造句
31. As outlined in that report, the most severe threat facing any transportation system is a weapon of mass destruction such as a nuclear device or a biological weapon.
32. An al-Qaida recruiting video indicates that the terrorist organization hopes to sneak a biological weapon into the US through its border with Mexico, the Washington Times reported.
33. "No shrewd user" of a biological weapon "is going to give you that opportunity," he warned.
12