先兆的英文：
a straw in the wind
foreboding
presymptom

参考例句：
  • The aura is perhaps the most talked about of the phases.
    先兆期是被谈论最多的阶段。
  • Moral corruption is the forerunner of national decline.
    道德败坏是民族衰落的先兆。
  • Coming events cast their shadows before
    即来之事必有先兆
  • It is said to be an omen of misfortune.
    那被认为是一种不幸的先兆。
  • An evil omen;a portent.
    先兆不详之兆;凶兆
  • These faculae frequently are the forerunners of sunspot formation
    这些光斑常常是形成太阳黑子的先兆。
  • Some strokes occur without advance notice
    有些中风发作前没有先兆。
  • 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。
  • By developing a sight for aura you will be able to check both physical and mental health.
    通过发现先兆，你可以对身心健康进行彻查。
  • A condition of hypertension occurring in pregnancy,typically accompanied by edema and proteinuria.
    先兆子痫怀孕期间出现的高血压状态，通常伴有水肿和蛋白尿病
straw是什么意思：
n. 禾秆；麦管，稻草编织品；鸡毛蒜皮；用以作掩护的人，浅黄色
adj. 禾秆的；浅黄色的，无价值的，稻草人般的；假的
  • The tick is straw.
    这是个草垫子。
  • Glass should be packed in straw.
    玻璃器皿应该包扎在稻草中。
  • A drowning man will clutch at a straw
    病急乱投医
wind是什么意思：
n. 风；吞下的气
v. 曲折而行；缠绕；使喘大气
  • The wind is blustering.
    风在呼啸狂吹。
  • Wind power: Use of the energy in winds to produce power.
    风力:利用风的能量来产生动力。
  • wind energy potential
    风能潜力
foreboding是什么意思：
n. 预感,先兆,预兆
  • She had a sinister foreboding that the plane would crash.
    她有个不祥的预感,飞机要失事.
  • The sailor's wife had a foreboding that he would not return
    那海员的妻子预感到他将一去不复返。
  • The sailor's wife had a foreboding that he would not return.
    那海员的妻子预感到他将一去不复返。

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