mainspring词根词缀

mainspring

[ˈmeɪnsprɪŋ]

n.主体部分，主要影响;（钟表等的）主发条;

复数： mainsprings

例句:

1、

Knowing any man's mainspring of motive you have as it were the key to his will.

你要找的正是这种“原动力 ”,它不一定总是某种高尚的或重要的东西.

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2、

Fear is the mainspring of war.

恐惧是战争的主要动力.

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3、

His belief in liberty was the mainspring of his fight against slavery.

他对自由的信仰是他反抗奴隶制度的主要动力.

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