| 单词 | boom and bust |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔boom〕The insurance business suffered from a vicious cycle of boom and bust.保险业经历了繁荣和萧条的恶性循环。剑桥高阶IT is a highly competitive industry, prone to boom and bust.信息技术是高度竞争的产业，容易出现繁荣与衰退交替的循环。牛津商务The insurance business has been characterised by a vicious cycle of boom and bust as companies go in and out of businesses and prices rise and fall.由于大量公司的开业和停业以及价格的涨落，保险业的特点是由繁荣和萧条的恶性循环所造成的。剑桥国际 |
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十年可见春去秋来，百年可证生老病死；千年可叹王朝更替，万年可见斗转星移；凡人如果用一天的视野，去窥探百万年的天地，是否就如同井底之蛙。-「天行九歌」
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