To be a successful fashion model, a guy needs to be more than just a looker. He has to have confidence, poise and a sense of style.
要成为一个成功的时装模特，一个人不仅要长相出众。他还必需要自信、优雅并有时尚感。
If they lack confidence in that mental model, they have less incentive to use the software themselves, [...].
如果他们对心智模型缺乏信心，他们本身就会缺乏使用软件的动力[……]。
Using all of this data, a predictive model can be built to determine with a level of confidence how likely a particular customer is to purchase incoming or existing products at the store.
可以使用所有这些数据构建一个预测模型，以确定在一定的信心水平下，特定客户购买商店的现有产品或即将进货的产品的可能性。
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