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
My job offers no room for advancement.
我的工作没什么发展前途。
This is a poem about frontier life in the United States.
这是关于在美国的边疆生活的一首诗。
Eh?
什么？