upper

upper1
adjective
  1. situated above another part
    较高的，较上的
    his upper arm.
    他的上臂。
    the upper atmosphere.
    高层大气。
    ■higher in position or status
    （职务，地位）高级的，高等的
    the upper end of the social scale.
    社会等级的高层。
  2. situated on higher ground
    地势较高的
    ■situated to the north
    北部的
    [in place names]Upper California.
    上加利福尼亚。
  3. (Geology & Archaeology)denoting a younger (and hence usually shallower) part of a stratigraphic division or archaeological deposit or the period in which it was formed or deposited
    (地质，考古)晚期的，较近期的
    the Upper Palaeolithic age.
    旧石器时代晚期。
noun
  1. the part of a boot or shoe above the sole
    鞋帮
常用词组
have (或 gain) the upper hand
  1. have or gain advantage or control over someone or something
    对…取得优势
on one's uppers
  1. (informal)extremely short of money
    (非正式)极度穷困的
the upper crust
  1. (informal)the upper classes
    (非正式)上等阶层
语源
  1. Middle English: from the adjective up + -er
upper2
noun
  1. (一般作 uppers)(informal)a stimulating drug, especially amphetamine
    (非正式)兴奋剂（尤指安非他明）
语源
  1. 1960s: from the verb up + -er
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