dose

dose
noun
  1. a quantity of a medicine or drug taken or recommended to be taken at a particular time
    （药物的）剂量，一剂，一服
    he took a dose of cough mixture.
    他吃了一服咳嗽合剂。
    ■an amount of ionizing radiation received or absorbed at one time or over a specified period
    （一次或一段时间内）接受（或吸收）电离辐射的剂量
    a dose of radiation exceeding safety limits.
    超过安全用量的辐射剂量。
    ■(informal)a venereal infection
    (非正式)性病；花柳病
    ■(informal)a quantity of something regarded as analogous to medicine in being necessary but unpleasant
    (非正式)（像药一样虽苦却必要的事情）一点，一份，一次，一番
    I wanted to give you a dose of the hell you put me through.
    我想让你也尝一尝你给我遭的罪。
verb
  1. [with obj.]administer a dose to (a person or animal)
    给（人，动物）服一剂药
    he dosed himself with vitamins.
    他服用维生素。
    ■adulterate or blend (a substance) with another substance
    掺入，混合
    the petrol is dosed with lead.
    这种汽油里混入了铅。
常用词组
in small doses
  1. (informal)when experienced or engaged in a little at a time
    (非正式)一次一点地，慢慢地，少量地
    computer games are great in small doses.
    电脑游戏每次只玩一会儿是很好的。
like a dose of salts
  1. (Brit. informal)very fast and efficiently
    (英，非正式)很快地，一下子
    we'll go through this place like a dose of salts and scrub it from top to bottom.
    我们会很快把这个地方从顶到底擦干净。
语源
  1. late Middle English: from French, via late Latin from Greek dosis 'gift', from didonai 'give'
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