dilate

英 [daɪˈleɪt]

美 [daɪˈleɪt]

v.  扩大; (使)膨胀，扩张

过去式：dilated　过去分词：dilated　现在分词：dilating　第三人称单数：dilates　复数：dilates　

TOEFLIELTSGRETEM8

Collins.1 / BNC.19079 / COCA.18343

牛津词典

verb

• 扩大；（使）膨胀，扩张
  to become or to make sth larger, wider or more open
  1. Her eyes dilated with fear.
     她吓得瞪大了眼睛。
  2. dilated pupils/nostrils
     扩大了的瞳孔；张大了的鼻孔
  3. Red wine can help to dilate blood vessels.
     红葡萄酒有助于扩张血管。

柯林斯词典

• V-ERG (使)(血管)扩张;(使)(瞳孔)放大
  When things such as blood vessels or the pupils of your eyesdilateor when somethingdilatesthem, they become wider or bigger.
  1. At night, the pupils dilate to allow in more light...
     到了晚上，瞳孔就会扩大以接收更多光线。
  2. Exercise dilates blood vessels on the surface of the brain.
     运动会使大脑表层的血管扩张。

英英释义

verb

• become wider
  1. His pupils were dilated
  Synonym:distend
• add details, as to an account or idea
  1. She elaborated on the main ideas in her dissertation
  Synonym:elaboratelucubrateexpatiateexpositenlargeflesh outexpandexpound

双语例句

• It activates the cardiovascular system, so heart rate and blood pressure increase, then the arteries dilate, causing blood pressure to fall again.
  它可以激活你的心血管系统，心率和血压随之升高，然后动脉扩张，导致血压再次降低。
• To conserve blood that will be needed by muscles, skin vessels constrict while vessels of the muscles dilate.
  为了保存肌肉所需要的血液，皮肤血管收缩，而肌肉血管舒张。
• Your pupils contract in bright light, and dilate in darkness.
  你的瞳孔会在明亮的光线下收缩，在黑暗中扩大。
• The pupils of the eyes dilate as darkness increases.
  眼睛的瞳孔随暗度增加而张大。
• "This suggests that adding nitric oxide to human banked blood could theoretically improve its ability dilate blood vessels and thus prevent heart attacks and even death in patients," said the researchers.
  研究人员说“这表明在库存血中加入一氧化氮理论上可以提高其血管扩张的能力，从而防止病人的心脏病发作，甚至死亡”。
• The encounter opened his memory and his senses, and left them dilate.
  这次相逢打开了他的记忆和感官，再也收不拢。
• Due to the long term shunting of blood and an increase in volume load, the right atrium, right ventricle& pulmonary arteries dilate.
  分流所致的长期容量负荷增加造成右房、右室和肺动脉扩张。
• Exercise can help blood vessels dilate with greater ease, increase insulin effectiveness in muscles, and decrease heart rate.
  体育锻炼可以帮助血管，使它们比较容易扩张，增加胰岛素在肌肉中的有效度，又能使心跳放慢。
• Pupils dilate, palms become sweaty and the heart rate increases.
  瞳孔放大，手心出汗。心率加快。
• For example, medicines that help dilate major air passages of the lungs can improve shortness of breath.
  例如，帮助扩张肺部主要气道的药品能够改善呼吸困难。