| 单词 | 曾几何时 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔back in the day〕Back in the day, we had an apartment with a swimming pool.曾几何时我们还有过一套带游泳池的公寓。剑桥高阶Once upon a time, they had an idolatrous worship of money. 曾几何时，他们对钱有偶像一般的崇敬。译典通 |
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