先兆用英语怎么说？

先兆

• [xiān zhào]
  foreboding，foregleam，omen，portent，aura

例句

• What premonitory signs and symptoms may exist for vasovagal syncope? 血管迷走神经性晕厥出现的先兆症状和体征有哪些?
• Spring's real harbingers are too subtle for the eye and ear. 对于眼睛和耳朵而言,春天名副其实的先兆太微妙了.
• I had the beginnings of a headache. 我有了头痛的先兆。
• It is said to be an omen of misfortune. 那被认为是一种不幸的先兆.
• Intracardiac tumors or ball - valve thrombi can intermittently obstruct blood flow heart, producing presyncope or syncope. 心内肿瘤或球状样瓣膜血栓可间歇性阻断心内血流, 引起晕厥先兆或晕厥.
• Bleeding may be herralded by several day of exacerbation of pain. 数天的疼痛加剧可能为出血的先兆.
• These patients have an increased risk of developing preeclampsia or eclampsia ( toxemia ) of pregnancy. 但其罹患先兆子痫和妊娠毒血症的风险会增加.
• Ask : Is my augural? 正文:问: 我爹爹是否脑卒中先兆?
• Anaphylaxis may occur without any warning, often leading to cardiovascular collapse. 过敏可在无任何先兆情况下发生, 常可导致心血管虚脱.
• Some respiratory symptoms can be the forerunners of asthma. 一些呼吸道症状可能是哮喘病的先兆。

词组搭配

• 先兆痉挛
  protospasm
• 先兆流产
  threatened abortion
• 先兆子痫
  threatened abortion

同义词

• 前兆，预兆，征候，征兆，

英汉词典释义

• foreboding; foregleam; omen; portent; sign; indication; [医] aura
  ill omen
  不祥的先兆
  an omen of success
  成功的先兆
  indications of an impending earthquake
  地震的先兆
  portents of war
  战争的先兆
  It is said to be an omen of misfortune.
  那被认为是一种不幸的先兆。
  Black clouds are an unmistakable sign of coming rain.
  乌云是下雨的明显先兆。

汉语词典释义

• 词语 先兆
  拼音 xiān zhào
  解释 (名)事先显露出来的迹象.偏正式:先(兆.燕子低飞是下雨的一种~.(作宾语)(同义)预兆、前兆、征兆、征候.
  构成 偏正式：先（兆
  同义词 预兆、前兆、征兆、征候
  例句 燕子低飞是下雨的一种～。（作宾语）
  释义

  (名)事先显露出来的迹象。

行业词典

• 医学： aura；