A well-trained dog is more confident and can more safely be allowed a greater amount of freedom than an untrained one.

一只训练有素的狗更自信，给它更多的自由时间会比未经训练的狗更安全。

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Well-structured and refactored code can look awkward to an untrained eye.

具有优美结构以及经过重构的代码，在菜鸟的眼里，是笨拙而粗陋的。

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In the example code, the weights are randomly assigned (representing an untrained network).

在示例代码中，加权是随机指定的(表示未经训练的网络)。

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Since some facsimiles were made long ago, they look old to an untrained eye.

FORBES: Connect

Teaching reading and writing is a complex undertaking, especially when the learner is an adult, and the educator is an untrained volunteer.

UNESCO: Kha Ri Gude (Let Us Learn) Adult Literacy Programme (KGALP)

"I don't think this behavior was atypical" of an untrained hacker.

CNN: Graphic