填空题 We got to work and succeeded, after a good deal of 1, in making our butter.
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【正确答案】 1、trial and error    
【答案解析】解析： We got to work and succeeded , after a good deal of(很多的)trial(试验) and error( (错误)反复实验 ), in making our butter(黄油(我们的生计) ). 我们得到了工作和成功, 经过反复试验好交易