他们正在讨论商业策略。

They are discussing business ___strategy.

将军制定了一项新战略来包围敌方城市。

The general developed a new ___strategy to encircle the enemy city.

他制定了一个新的学习策略来提高英语口语能力。

He developed a new study ___strategy to improve his English speaking skills.

我们的新战术在下半场比赛中发挥了关键作用。

Our new ___strategy played a key role in the second half of the game.