| 单词 | 使用价值 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔evaluate〕We need to evaluate the usefulness of new products before we spend money on them.我们在花钱购买新产品之前需要评估一下它们的使用价值。外研社新世纪〔wealth〕All goods and resources having value in terms of exchange or use.财物：有交换或使用价值的物品和资源美国传统Eventually we decided that the system had outlived its usefulness (= was no longer useful or necessary).最后我们决定这个系统已不再有使用价值了。剑桥国际 |
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