| 单词 | 经过改良 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔recognition〕The facilities have improved beyond all recognition.这些设备经过改良, 焕然一新。外研社新世纪〔retrofit〕They retrofitted the plane with improved seating.他们在飞机上安装了经过改良的座椅。牛津高阶 |
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