科学家们正在讨论这种超级武器可能对全球安全造成的威胁。

Scientists are debating the potential threats to global security posed by this ___superweapon.

科学家们正在研发一种超级武器，据说能瞬间摧毁整个城市。

Scientists are developing a ___superweapon that can reportedly destroy an entire city in an instant.