Epicyclic
a. [數]周轉圓的,[天] 本輪的
??? 情景例句
Everything is fine, Michelle.
一切都好， Michelle。
Fine, thanks. And you?
很好，謝謝，你呢？
If they knew how difficult it was to drill through the hard rock, they would lose heart.
如果他們知道了鉆透那堅硬的巖石有多么困難，他們會喪失信心的。