英語翻譯：

decline; wane

相關詞條：

例句：

1. 歷史上各個帝國革故鼎新均有興衰。
   Throughout history empires have waxed and waned.
2. 帝國經過全盛以后逐漸衰落。
   The empire was on the wane after its period of prosperity.
3. 通貨膨脹是經濟衰退的征兆嗎？
   Is inflation symptomatic of economic decline?
4. 到這時，羅馬帝國已日益衰敗。
   By now the power of the Roman Empire was on the wane.
5. 病人太衰弱了，不能說話。
   The patient is too weak to speak.
6. 在以后的幾年里，他變得衰弱了。
   He grew weak in after years.