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primum mobile n.〔拉丁語〕1.原動天,第十層天〔古希臘天文學家托勒密...

primus

The long chimney running up beside an ash - tree , and the warmth which radiated from the spot , explained without the necessity of much daylight that here was the engine which was to act as the primum mobile of this little world 那個地點向外散發著熱氣,在一棵槐樹的旁邊矗立著高大的煙囪,這用不著大亮就能夠看出來,那就是為這個小小的世界提供主要動力的引擎。