这场战争可能导致整个文明的毁灭。

The war could result in the ___annihilation of entire civilizations.

我们的军队在战斗中遭遇了彻底的歼灭。

Our army faced total ___annihilation in the battle.

当质子与反质子相遇时，会发生湮灭并释放大量能量。

When a proton meets an antiproton, ___annihilation occurs and releases a huge amount of energy.