I've learnt from bitter experience not to trust what he says.

我已从痛苦的经验中得到了教训，不要相信他的话。

《牛津词典》

A great deal of bitter experience had taught him how to lose gracefully.

大量痛苦的经历已经教会了他如何体面地认输。

《柯林斯英汉双解大词典》

She quavered out her bitter experience.

她以颤抖的声音讲述她悲惨的遭遇。

youdao

Why does your body experience one food as highly pleasant, highly reinforcing, highly comforting, highly soothing even, and experience those other foods as bitter and unpleasant?

为何身体能从一种食物中获得高度愉悦感,感到极度满足,舒适,甚至感到安抚,但却觉得其他食物难以下咽呢

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

All true, but it was also the product of bitter experience, good management and careful investment.

BBC: Home-spun wisdom seals Cardiff Blues' European glory

The Americans, with bitter experience of how the Oslo peace process unravelled, are sceptical.

ECONOMIST: Charlemagne

Many of those attending will be there because they have learned from bitter experience, says Ms Miller.

BBC: Opening the doors on divorce