| 单词 | drop in quality |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔preoccupation〕The management's preoccupation with costs and profits resulted in a drop in quality and customer service.管理人员过于追求成本效益和利润，导致了产品质量和客户服务水平的下降。朗文当代 |
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