We learn, in a sense, by trial and error.

从某种意义上说，我们是通过反复试验、不断犯错来学习的。

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Many drugs were found by trial and error.

许多药物都是经过反复试验后才被发现的。

《柯林斯英汉双解大词典》

Children learn to use computer programs by trial and error.

儿童通过反复摸索才学会运用计算机程序。

《牛津词典》

But ten years later, a similar accusation by another boy led to a criminal trial which began in two thousand five.

VOA: special.2009.07.05

In just a moment the hearts are gonna start flowing from bottom to top and the cookies are gonna start moving left and right and they seem to be somewhat synchronized with the music, perhaps based on trial and error by the student who implemented this one.

刚刚那一刻，那些爱心们从底部上浮到顶部,饼干人则向左向右移动,它们似乎都随着音乐的律动而变化着，也许这是那个制作该动画的同学,不断尝试的结果。

哈佛公开课 - 计算机科学课程节选

This is Comus, line 588 -- the Elder Brother. The brother says: Virtue may be assail'd but never hurt, Surpris'd by unjust force but not enthrall'd, Yea even that which mischief meant most harm Shall in the happy trial prove most glory.

这是《科玛斯》，第588行--哥哥这个角色，他说：,诗歌大意：，贞操或许遭袭，却不会受损，或许为不义之力突袭，却不会乱了阵脚，是的，对于贞操最重的伤害也不过是玩笑,考验只是证明它无上的荣光。

耶鲁公开课 - 弥尔顿课程节选

"Dr. Kevorkian knowingly, intelligently, and voluntarily waived his right to be represented by trial counsel, " Judge Cooper wrote.

CNN: Kevorkian Case: Judge denies request for new trial

The Met is refusing to repeat itself and is seeking, by trial and error, a new theatrical identity.

NEWYORKER: Fiasco

This way of developing new products by trial and error makes the fund-management business unique among big industries.

ECONOMIST: Ogling Bogle | The