4周搞定2000+托福核心词
omnipresenent = omni(到处) + pre(预先) + sen(存在) + ent(…的) = 到处都出现→无所不在的
precursor = pre(预先) + curs(跑) + or(人) = 先跑者→先驱
access = ac(使) + cess(行走) = 使行走的东西→通道
accessible = ac(来) + cess(行走) + ible(能…的) = 可以走近的→可接近的，可使用的
abrasion = ab(表加强) + ras(刮擦) + ion(表名词) = 磨损
abstraction = abs(离去) + tract(拉) + ion(表名词) = 被拉开→抽象
预先行走→进动；旋进
precession
常考释义
There is a third movement the hypothesis covers called precession.
假说还包括了第三种名为“旋式推进”运动。
来源于：听力OFFICIAL17 L2n. 【物理学】进动；旋进
The precession frequency goes up.
旋进的频率上升了。
There is a third movement the hypothesis covers called precession.
假说还包括了第三种名为“旋式推进”运动。
来源于：听力OFFICIAL17 L3Precession, basically is the change in the direction of earth’s axis of rotation.
旋进基本上是地轴旋转方向的变化。
来源于：听力OFFICIAL17 L3It will take me a million years to explain even just the basics of this movement as precession is quite complex.
因为旋式推进运动的基础特别复杂，即便花费了一个世纪我们也没弄清楚。
来源于：听力OFFICIAL17 L3n. (分点)岁差
But in reality, the wobble of the Earth on its axis -- which we call "precession" -- has led to them being all out of sync.
而事实情况是，地球在其轴线上的摇动——我们称为“岁差”——让这些星座都偏离了原来的时刻。
n. 领先，领先
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