音标：['nei.diә] ；柯林斯词典等级：2 级；

n. 天底, 最低点

n. an extreme state of adversity; the lowest point of anything
n. the point below the observer that is directly opposite the zenith on the imaginary sphere against which celestial bodies appear to be projected

词型变化：名词复数形式 : nadirs
考试类型：[GRE]

词性分布：

名词100%

nadir的用法和样例：

例句

用作名词(n.)

The demand for this product will reach its nadir within two years.对此产品的需求在两年内将达到最低点。
The nadir of fertility appears to be 1.3 children per woman.生育率的最低点为每个妇女1.
It felt as if we had traveled from nadir to zenith.感觉上我们好像已从天底走到了天顶。

词汇搭配

nadir radial line天底点幅射线...
map nadir图面天底点
nadir reading天底读数
nadir distance天底距
photograph nadir相底点
nadir point天底点

经典引文

When Buckingham was assassinated..England's international reputation was at its nadir.
出自：C. Hill

【近义词】

all-time low低谷
rock bottom最低点
pits凹点
depths深处
base底部
foot脚
low-water mark最低点

【反义词】

zenith顶点

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学英语单词

aluminium ethide

aminoglycoside modifying enzyme