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

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

What Rose had put her finger on, by trial and error, was one of the great shortcomings of formal higher education.

FORBES: The Education of an Entrepreneur, Episode 1: The Story of Rose Cole