vi.（指潮水）退；跌落；减少；衰落n.退潮；落潮；衰退；减少 变形： 复数：ebbs过去式：ebbed过去分词：ebbed现在分词：ebbing第三人称单数：ebbs 双语释义：v.(动词)vi. (指潮水)退；落 (of the tide) flow back from the land to the seavi. 减少；衰落 grow less;become slowly,weak or faintn.(名词)[U]退潮；落潮 the flowing out of the tide[U]衰退；衰落