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 ravages of this condition I observed; the onset of her mental instability I only felt.
  我目睹了疾病的摧残，但只能凭感觉猜想她精神刚开始不稳定时的状况。
• Objective to explore the relationship between time of AF onset and clinical prognosis in acute period of ami.
  目的探讨急性心肌梗塞（ami）急性期间，房颤（af）发作时间与临床预后之间的关系。
• Symptoms of acute onset suggest a vascular cause or seizure;
  急性起病的症状，提示血管性或为癫痫发作；
• 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。
• In the traditional societies of Africa, the onset of puberty marked the change from child to adult.
  在非洲的传统社会中，青春期一开始就标志着从孩子变成成年人了。
• Together we had watched the advance and onset of world disaster.
  我们曾一同注意观察世界灾难的发生和发展。
• The sudden onset of winter caused havoc with rail and air transport
  冬天的突然降临让铁路和航空运输系统陷入混乱。
• Conclusion Cause, age of onset chronic renal failure, ultrafiltration, PTH hypotension-related.
  结论导致慢性肾衰的原发病、年龄、超滤量、PTH与低血压的发生有关。
• 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。
• Neighbours near his home reported poultry deaths prior to his onset of symptoms.
  在他的症状出现之前，他家附近的邻居报告了禽类死亡。