Don't add models unless not adding them would be worse, adhering to Einstein's plea to express everything as simple as possible, but no simpler than that.

不要增加模型，除非不这样做会导致恶果，坚持爱因斯坦的观点，尽量简单地表达每个事物，但又不是过于简单。

youdao

In the U.S. it has been gaining in part because it was able to add more models.

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But the plant is designed to be flexible, so it can add new models, or cut back production if necessary.

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Consumers proved ravenous, spurring Hertz to add more posh models in more locales.

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