国际象棋是一种需要策略的游戏。

Chess is a game that requires ___strategy.

我们正在制定新的策略以提高我们的市场份额。

We're working on new ___strategies to improve our share of the market.

我的策略很简单：所有玩家都有丰富的经验，所以我认为唯一获胜的机会就是虚张声势。

My ___strategy was simple: all the players had a lot of experience, so I thought that the only chance to win was to bluff it out.