Precession
n. 先行, 优先\\n[化] 进动; 旋进
📖 牛津释义
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
It's certainly a good idea.
这的确是个好主意。
Why are you so much taller than I?
你为什么个子比我高那么多？
People are not so honest as they once were.
人们不再像以前那样诚实了。