Civil wars are so costly that well-timed military actions are quite likely (though not certain) to be cost-effective.

内战的代价如此高昂，因此，适时的军事行动很可能是成本有效的(尽管这不是必然的)。

youdao

Civil wars are so costly that well-timed military actions are quite likely (though not certain) to be cost-effective.

内战的代价如此高昂，因此，适时的军事行动很可能是成本有效的(尽管这不是必然的)。

youdao