tinkerer
n. 喜欢捣鼓小器具、小发明的人
1. an unskilled person who tries to fix or mend
2. a person who enjoys fixing and experimenting with machines and their parts
3. a traveling repairman who mends broken things (such as metal household utensils)
Evolution is a tinkerer, and its products are not necessarily neat or elegant.
进化是一位修补匠, 他的产物不必整洁而又优雅.