评论：词汇“positive reinforcement”的中英文读音、翻译、用法及例句

内容简介：双语使用场景 They can be invaluable in giving you the positive reinforcement and guidance you need.───模范的影响会提供很多正确的方法及正面的推动力. Praise and positive reinforcement are an important part of the Matsushita...

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