omen; forewarning; premonition; foreshadow; forerunner 短语和例子暴风雨的前兆 warning signs [indications] of a storm; 成功的前兆 an omen of success; 地震的前兆 warning signs of an earthquake前涌;前兆: forerunner前兆;序言: prelude前兆的: augural; ominous; portentous; precursory; premonitory; prognostic; prophetical前兆地: portentously前兆期: premonitory phase下载手机词典可随时随地查词查翻译