单词：alternative cost
alternative cost的用法和样例：
例句
- So-called labor-intensive estate uses a lot a labor element under the condition that labor element can't be superseded, or superseding cost is too high in the world.所谓劳动力密集型产业，是在世界范围内仍无法用非劳动力要素替代或替代成本过高，仍必须大量使用劳动力要素的产业。
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今天我们要学的词是 alternative. Alternative 作为形容词，意思是另外的，可以用于替代的。Stephen Hawking predicts that planet Earth will only survive another 100 years, and it's urgent to consider an alternative planet. 霍金
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