trial-and-error

名词 trial-and-error:

1. experimenting until a solution is found
   同义词：trial and error

形容词 trial-and-error:

1. trying out various means or theories until error is satisfactorily reduced or eliminated
2. relating to solving problems by experience rather than theory

1. The only way Jim could solve the algebra problem was by the method of trial and error.
   要解决这道代数题，吉姆唯一能做的就是不怕失败，反复尝试。
2. I lost the instruction book and so I had to find out how to use the machine by trial and error.
   我把说明书丢失了，结果只得通过不断摸索才弄懂怎样使用这部机器。
3. He learned technical skills by trial and error.
   他通过不断摸索掌握技能。
4. I finally found the right key after lots of trial and error.
   经过反复试验，我终于找到了正确的方法。