4周搞定2000+托福核心词
彗星
comet
常考释义
And we’ve analyzed enough of them to learn a lot about their composition, most come from asteroids, though a few may have come from comets.
And we’ve analyzed enough of them to learn a lot about their composition, most come from asteroids, though a few may have come from comets.
来源于：听力OFFICIAL13 L4n. 彗星【天文】
cometary
energize vt.激励；使充满活力
en进入+erg能量+ize化 = 进入并使之能量化→给予能量
repulsive force n.斥力
precession n.进动；旋进
pre预先+cess行走+ion表名词 = 预先行走→进动；旋进
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