Selectively breeding a wild plant or animal species for certain desirable traits began as a fitful process of trial and error motivated by that age-old imperative: hunger.

为了某些可取的特性，人类选择性地繁育野生植物或动物物种，这一开始是一个断断续续的反复试验过程，驱动它的是由来已久的紧迫之事——饥饿。

youdao

Possibly the best method for researching an appropriate Linux distribution is trial and error, as distros are easy to download and try on LiveCDs or USB flash drives (UFDs).

研究适当Linux发行版的最佳方法可能是试用和错误，因为发行版可以轻松下载并在LiveCD或US b闪存盘(ufd)中试用。

youdao

Antipattern: Some use manual verification, trial and error (when deployment fails, check to see why), or keeping files "hidden" on a machine.

反模式：一些团队执行手工检查、尝试和纠错(在部署失败时，检查失败的原因)，或者把文件“隐藏”在计算机上。

youdao

Carrying out this sort of cyber snooping does not take an encyclopaedic knowledge of computers or hours of trial and error.

BBC: Snooping goes hi-tech

When researching antibiotics, candidate substances are identified either by computer modeling or good old-fashioned trial and error in the lab.

FORBES: Is Your Doctor Relying On Bad Information?

To create breakthrough innovation in cooking is not by the classic scientific method of carefully-planned-in-advance-and-in-detail research, or teleological, activities, but through trial and error.

FORBES: For Innovation, Knowledge is a Poor Substitute for Experimentation