| 单词 | 低效能 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔opera glass〕A pair of small, low-powered binoculars for use especially at a theatrical performance. Often used in the plural.观剧镜：特指在戏院看演出时用的低效能的小型望远镜。常用作复数美国传统He complained that the inefficiency of the department was leading to poor sales.他抱怨说那个部门的低效能导致销量很差。剑桥国际 |
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