primum mobile meaning in English
n.
〔拉丁语〕
1.原动天，第十层天〔古希腊天文学家托勒密的天动说中的最外层天体，带动所有天体转动〕。
2.〔比喻〕原动力；行动[运动]的主因。
Examples
- 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
那个地点向外散发着热气，在一棵槐树的旁边矗立着高大的烟囱，这用不着大亮就能够看出来，那就是为这个小小的世界提供主要动力的引擎。