形容词
中文翻译：未受训练的
同义词：
['unskilled', 'unschooled', 'untrained']
例句：
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1.The new employee is untrained and needs more guidance.
新员工未经训练，需要更多的指导。
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2.The child was untrained in basic skills and struggled to learn.
这个孩子在基本技能方面未经训练，学习起来很困难。
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3. The untrained worker made mistakes that could have been avoided with proper training.
未经训练的工人犯了错误，这些错误本可以通过适当的培训来避免。