She distrusted his motives for wanting to see her again.
她懷疑他想再見她一面是別有用心。
He acted from base motives.
他的行為動機卑鄙。
He tried to get a fix on the young man's motives, but he just couldn't understand him.
他努力瞭解這個年輕人的動機，但就是弄不清楚。
Their motives remain a mystery.
他們的`動機仍然是個謎。
Her motives for helping are questionable.
她幫忙的動機令人生疑。
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