The nadir of something such as someone's career or the history of an organization is its worst time.
例句
1945 to 1946 was the nadir of Truman's presidency.1945至1946年的那段时间是杜鲁门总统执政最艰难的时期。
N-SING
天底
In astronomy, the nadir is the point at which the sun or moon is directly below you, on the other side of the earth.
英汉词典释义
n.
最低点;最压抑、消沉等的时刻
At the nadir of her career,she was given a great encouragement by his marrying her.在她事业处于低谷时,他和她结婚给了她巨大的鼓励。This failure was the nadir of her career.这次失败是她事业上的低谷。
英英词典释义
Noun
1. an extreme state of adversity; the lowest point of anything
2. the point below the observer that is directly opposite the zenith on the imaginary sphere against which celestial bodies appear to be projected