mainspring
n. 主體部分,主要影響; (鐘錶等的)主發條
If you say that an idea, emotion, or other factor is the mainspring of something, you mean that it is the most important reason or motive for that thing.
My life has been music, and a constant search for it has been the mainspring of my life...
我以音樂為生,對音樂的不懈探索已經成為我生活的動力。
You begin to understand what actions were the mainspring of the story.
你開始體會到是什麼樣的行動在推動這個故事的發展。
1. the most important spring in a mechanical device (especially a clock or watch); as it uncoils it drives the mechanism
Knowing any man's mainspring of motive you have as it were the key to his will.
你要找的正是這種“原動力 ”,它不一定總是某種高尚的或重要的東西.
The mainspring of the mechanism would remain unchanged.
這一機制的主要推動力依然不會改變.
The movements of the wrist make the rotor swing and this winds the mainspring automatically.
腕部的運動使得擺錘搖擺,自動使主發條上緊.
The mainspring makes the watch motion.
發條帶動表走.
His belief in liberty was the mainspring of his fight against slavery.
他對自由的信仰是他反抗奴隸制度的主要動力.