precession
n[U]
(also pre,cessionof the `equinoxes) gradual change in the angle at which the earth revolves daily, causing the equinoxes to occur slightly earlier in each successive year 岁差(地球自转角度的渐次变化, 使每年的春分点及秋分点比上年略为提前).
🗣️ 情景例句
What's your position?
你的职位是什么?
To answer the first part of your question, I'd like to say that our studies were very extensive.