There's a lack of appreciation for trial and error.

缺少对尝试和失败的欣赏。

youdao

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》

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》

And that can take a little bit of trial and error."

VOA: special.2010.08.04

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

So it's a trial and error.

那么他反复尝试并得到错误答案。

哈佛公开课 - 计算机科学课程节选

Doctors now diagnose and treat the ill through educated hunches and trial and error.

FORBES: Magazine Article

After a year and a half of work and trial and error, they were ready to dive headfirst into the startup world.

FORBES: How A YCombinator Startup Is Born: The Story Of Strikingly

AUGSBURG, Germany (CNN) -- After 30 years of hard work and trial and error, brewmaster Axel Heiliger says he has come up with a way to save the beer industry time and money.

CNN: New ideas brewing in beer industry