单词：trial and error
trial and error的用法和样例：
例句
- 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。
- 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。
- He learned technical skills by trial and error.他通过不断摸索掌握技能。
- 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。
词汇搭配
- by trial and error反复试验地
- trial and error反复试验, 不断摸索...
- science科学
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