onset

英 [ˈɒnset]

美 [ˈɑːnset]

n.  开端，发生，肇始(尤指不快的事件)

TOEFLIELTSGRETEM8医学

Collins.1 / BNC.6461 / COCA.7094

牛津词典

noun

• 开端，发生，肇始（尤指不快的事件）
  the beginning of sth, especially sth unpleasant
  1. the onset of disease/old age/winter
     疾病的发作；老年的开始；冬天的来临

柯林斯词典

• N-SING （尤指不快之事的）开始，开端，肇始
  The onset ofsomething is the beginning of it, used especially to refer to something unpleasant.
  1. Most of the passes have been closed with the onset of winter...
     冬天来临，大部分关口均已关闭。
  2. With the onset of war, oil prices climbed past $30 a barrel.
     战争一爆发，油价就攀过了每桶30美元。

英英释义

noun

• (military) an offensive against an enemy (using weapons)
  1. the attack began at dawn
  Synonym:attackonslaughtonrush
• the beginning or early stages
  1. the onset of pneumonia
  Synonym:oncoming

双语例句

• The patient may or may not notice these symptoms during the onset of the vertigo.
  眩晕发作时，病人可能感觉到、也可能感觉不到耳鸣和听力下降。
• There are multiple factors that might influence the onset and severity of pulmonary hypertension in IPF.
  有很多因素可影响IPF过程中肺动脉高压的出现和严重度。
• Bleeding and diarrhea signal the onset of symptoms.
  出血和腹泻意味着症状的发作。
• On the basis of its onset, constipation may be classified as acute or chronic.
  根据病发情况，便秘可分急性和慢性两种。
• A juvenile between the onset of puberty and maturity.
  处于青春期和成熟期的青少年。
• The Arab revolutions are not over, despite talk of the onset of winter.
  尽管有人说阿拉伯革命开始进入了“冬季”，但革命并没有结束。
• Nonetheless, classification by age of onset and maximum function achieved is useful for prognosis and management;
  不过，通过发病年龄和获得的最大功能分类可以用来进行预后和管理；
• Methods The data of49 cases of early onset severe preeclampsia were retrospectively analyzed.
  方法对49例早发型重度子痫前期患者进行回顾性分析。
• We now think that it may not be the amyloid fiber filaments that cause neuron death and disease onset.
  我们现在认为可能并不是淀粉样纤维细丝导致神经元死亡和疾病的发作。
• With the onset of war, oil prices climbed past$ 30 a barrel.
  战争一爆发，油价就攀过了每桶30美元。