这种训练不会有长久的效果。

The training was of no lasting value.

《牛津词典》

一次长久的注视或挑起眉毛暗示你对酒吧里碰到的人很感兴趣。

A prolonged gaze or arched eyebrow gives clues to the person who comes across the bar that you're interested in .

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它的象征意义可能来自于橄榄树需要很长时间才能结出果实，所以橄榄只能在长久的和平时期才能被成功种植。

The symbolism may come from the fact that the olive tree takes a long time to produce fruit, so olives could only be cultivated successfully in long periods of peace.

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And the reward for the poet's sacrifice here on earth is not simply eternal fame that had long been a privileged image.

诗人在世上的牺牲所带来的回报,不单是长久以来那个特权印象：百世流芳。

耶鲁公开课 - 弥尔顿课程节选

But the second is a desire to attract and maintain the divine presence, the continued presence of God in the sanctuary.

第二个是一种欲望，想要吸引和保持，上帝长久存在于圣所内的欲望。

耶鲁公开课 - 旧约导论课程节选

And there was newspaper speach in that case so that's been an interest of mine for a very long time.

有报纸报道了这个事情,而这也是我长久以来关注的一个话题。

普林斯顿公开课 - 人性课程节选