optimal相关的词根或词缀是: optim

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Chinese leaders no longer pretend the current system is optimal .

中国的领导人不再假装现在所拥有的是最优机制。

As conditions get worse , the optimal strategy becomes more conservative .

当境况变差时，最优策略就是保守行事。

Government bureaucrats cannot set an ideal currency price that is optimal for everyone .

政府官员不可能设定一个理想的货币价格，对每个人都是最优的。

But the optimal level of investment depends on a country 's stage of development .

但投资的最优水平还是取决于一国所处的发展阶段。

Communicating with friends and colleagues online has its own optimal cycles , research shows .

研究表明，在网上与朋友和同事交流也有最优周期。